Archive of Our Own

Chapter Text

Time had passed since she’d needed to struggle to breathe between punches, since survival had been something she earned with bruises and blood instead of quiet mornings. Some small, traitorous part of her missed it—the freedom of having nothing to lose, or at least the illusion of it. Fighting for every scrap. Existing on instinct alone.

But now she was here.

The apartment was clean. Unsettlingly clean. No dust collecting in corners, no forgotten dishes stacked in the sink, no personality. That, more than anything else, had surprised her. From her sensei, she’d expected far less discipline. Cold efficiency. Not an order that bordered on care.

Every day with him brought a new contradiction. Silence paired with patience. Sharp words followed by quiet understanding. Their meeting had been strange—violent, even—but looking back, she realized most important things in her life had begun that way.

There had been a time when violence was the only language spoken in the Underground district. A place the heroes rarely touched unless it spilled upward into polite society. Back then, Kyoko lived measured in debts—sometimes literal, sometimes written into the ache of her bones. She’d owed loan sharks more money than she weighed, and when she couldn’t pay, she ran. Weeks spent dodging familiar footsteps, memorizing alleyways, couch-hopping wherever pity outweighed caution.

Comfort was temporary. Pain was consistent.

Her only income came from boxing rings hidden beneath abandoned buildings and flickering neon signs. Illegal matches, unregistered quirks, crowds hungry for blood. No cheering—just shouting and bets exchanged with grim smiles.

She had been only twelve years old.

Most of the kids she fought were like her—too young, too desperate, already worn thin by a world that decided their worth early. They all stepped into the ring for the same reasons everyone always did.

Money. Fame, if they were lucky. Survival, if they weren't as lucky.

When her quirk first bloomed, there was no doctor to marvel at it, no classroom full of gasps or whispered envy. There was no paperwork, no guidance counselor gently explaining hero paths. Power didn’t come with permission where she lived.

So she took what she needed.

What she wanted.

Looking back, it felt almost silly—how fearless she’d been at ten. All sharp elbows and stubborn resolve, a scrawny little girl trying to claw her way upward without drawing too much attention from the wrong people. Trying to stay small while dreaming big.

But the boxing ring became her world. The ropes, the cracked mat beneath her bare feet, the bell that signaled pain and purpose all at once. She lost sometimes—anyone who fought long enough did—but defeat never lingered. Quitting had never been an option. Not when hunger waited outside the ring.

That match had started like any other.

The boy across from her swayed slightly on his feet. His nose was already bleeding, crusted red beneath hastily wiped skin. Split knuckles peeked through dirty, unraveling bandages. A few front teeth were missing, leaving his mouth hollow when he breathed.

He looked tired. Broken.

Kyoko didn’t look much better. Bruises bloomed beneath her skin, ribs screaming every time she inhaled. But her eyes—her eyes still burned. Sharp. Focused. Alive with a single, unyielding thought.

I will win.

And the Underground held its breath.

The bell rang.

Sound snapped through the room like a blade, sharp and final, and the world narrowed to the space between her gloves and his. The crowd dissolved into a distant hum, faces blurring into shadows pressed against the ropes. All that remained was motion.

Kyoko stepped first.

Her feet slid across the mat, light, deliberate. A dancer’s entrance. She felt the floor through the thin soles of her shoes, felt the echo of the bell still vibrating in her bones. The boy lifted his guard, shoulders tight, eyes flicking—fear, anticipation, hunger.

She smiled.

The first punch was a question. A probing jab, quick and clean, snapping against his gloves. He answered clumsily, overcommitting, and she slipped aside, the strike whispering past her cheek. Air rushed where her face had been a heartbeat before.

This was it.

Her pulse didn’t race—it sang. Every sound sharpened: the scuff of feet, the rasp of breath, the dull thunder of flesh meeting flesh. Time stretched, each second elastic and alive. She wasn’t thinking anymore. Thinking was slow. Thinking was for people who hesitated.

She moved on instinct.

A hook to the ribs. The impact shuddered up her arm, familiar and comforting. He grunted, folding just enough for her to see it—the crack in his guard, the flicker of pain. She pressed closer, close enough to feel his heat, close enough to smell blood and sweat and fear tangled together.

Boxing was intimate like this. Personal. A conversation spoken in bruises and breath. Every strike said I am still here. Every dodge whispered you are too slow.

He swung wildly, desperation bleeding into his form. She weaved beneath it, the world tilting as her body flowed, as if the ring itself were guiding her steps. Her fists followed the rhythm without conscious thought—jab, cross, hook—each movement a syllable in a language she loved.

Pain bloomed along her ribs as one of his punches landed solid. The crowd roared.

She laughed.

It hurt, yes—but the pain only made her feel real. Made her feel alive in a way nothing else ever had. Fighting wasn’t something she endured. It was something she craved. The burn in her muscles, the sharp clarity that cut through every doubt, every memory of hunger and cold.

This was where she belonged.

Blood slicked her lip. She tasted iron and grinned wider, eyes bright, unbroken. The boy faltered, seeing it then—the truth of her. That she wasn’t fighting for the money anymore. Not even for survival.

She was fighting because she loved it.

Her final combination came like a crescendo. A step in, a twist of her hips, power coiling and releasing all at once. The punch landed clean, ringing through the bones of her hand, through his body, through the air itself.

The bell had not rung yet.

But Kyoko already knew.

This dance was hers.

One thing she’d learned about boxing—earlier than most—was that it was a performance, too.

The men standing just outside the ring liked to pretend they didn’t matter. Shadows pressed against the ropes, voices swallowed by noise. They were invisible right up until the exact moment you won or lost. Then they became gods and executioners all at once.

Kyoko knew better.

She heard them clearly.

“Kick his ass.”

“Knock him out.”

“Kill him.”

That last one made her jaw tighten. A little much—even for shitty operations like this.

The noise frayed her focus. Just for a second. Her eyes drifted away from her opponent, away from the rhythm of the fight, and toward the faces crowding the ring. Old men with broken knuckles and younger ones with borrowed confidence. Some dripping money, others gripping their fists like they were the ones about to throw the punch.

They all wanted something from her.

But one of them stood apart.

A man—no different at first glance, yet wrong in a way her instincts immediately recoiled from. Kyoko wasn’t one to judge on appearances alone, but he screamed something else. Something she couldn’t hear, yet felt scraping against the inside of her skull.

His face was triangular, sharp in unnatural places. His posture hunched, as if the weight of the world had folded him inward. Where his nose should have been, there was only a hole—raw, unfinished. A vacancy that made her stomach twist. His presence alone could have bent stronger men into silence.

They met eyes.

The room shrank.

The ropes felt closer. The air thickened. For one suspended moment, it felt as though there was nowhere left to move—no corner to slip into, no space to breathe. Like the Underground itself had wrapped its hands around her ribs.

Kyoko broke the spell with motion.

She rolled her head, slow and deliberate, easing the tension in her neck, forcing her breath to steady. Muscle memory took over. She raised both fists, guard snapping back into place.

Her opponent—who had once stood proud across from her—was now sagging against the ropes, barely conscious. His eyes were unfocused, his knees trembling. Half-awake. Half-gone.

“What are you standing there for?” someone shouted. “Hit him!”

Her chest tightened.

This was the part she hated.

The part that didn’t feel like a dance. No rhythm. No exchange. Just an ending. A full stop.

For a flicker of a second, she felt sorry for him.

Then she stepped in.

Her fist met his chin with a clean, merciless precision. He didn’t dodge. Didn’t lift his guard. He took the hit as if he’d already decided he was finished—as if he had nothing left to give the world.

Kyoko stepped back before he even fell.

He collapsed to the mat like a sack of potatoes, boneless and silent.

The feedback from the battered microphone screeched through the room, making her wince. She groaned inwardly as the announcer’s voice cracked and echoed.

“Grimm is our winner!”

The crowd erupted.

Kyoko didn’t look down at the boy.

Her gaze found the man with the hollowed face again.

And this time, she understood.

“You will win.”

The words followed her long after the fight had ended, clinging to her thoughts like a bruise she kept pressing without meaning to. Their companionship—if it could even be called that—was strained at best. Sparse. Heavy with things neither of them said aloud.

It wasn’t until after the match that she understood why he had stood out so sharply among the crowd.

The man sought her out.

Not immediately. Not with the hunger of the others. He moved with intent, cutting through the aftermath of celebration and noise as if it were fog. With every step he took closer, Kyoko felt that same pressure she’d felt in the ring—the sense of the world narrowing, of something inevitable drawing near.

Then she recognized him.

Rumors snapped into place like puzzle pieces forced together.

Stain.

Or Stendhal—depending on who you asked. Some who have known him for longer remember his first few names.

The name carried weight. It didn’t just mean something—it warned something.

The Hero Killer.

A myth forged in blood and conviction. A whisper passed through alleyways and basements, through backroom deals and late-night fights. He killed corrupt heroes. Defied the Hero Commission itself. And somehow—always—walked away.

In the Underground, that mattered.

Heroes didn’t come here to save anyone. When they did show up, it was to clean the house, to ask questions no one could answer without bleeding. Resentment ran deep, settled into the cracks of the district like grime that never quite washed away.

So a man who understood pain—who punished those who wore capes without merit—earned something close to reverence.

Stain kept the heroes away.

Because of him, people were left alone to survive as they always had. To run their illegal rings. Their quiet crimes. Their desperate, ugly little lives. Without floodlights and sirens. Without judgment from above.

That was worth everything down here.

The respect he commanded wasn’t loud. It wasn’t shouted or begged for. It existed in the way voices lowered when he passed. In the way eyes followed him, careful and wary. In the space that opened instinctively around him, like the world itself knew better than to stand too close.

Kyoko felt it in her bones.

Standing there, bruised and bloodied, she realized something later in life with clarity.

She hadn’t just caught his attention.

She had been chosen. 

She wiped the blood from beneath her nose, smearing it across her bandaged knuckles without thinking. Red stained white, proof of something earned. Kyoko stood her ground, shoulders loose, posture casual—almost bored in his presence.

Almost.

Deep down, her nerves were screaming. Every instinct told her to run, to keep distance, to live. Fear coiled tight in her gut, cold and vicious. She forced it down. Fear showed weakness, and weakness invited predators.

“Stain,” she said, too quickly.

The word left her mouth before she could weigh it, and she hated herself for it.

He tilted his head slightly, white eyes narrowing—not in anger, but interest. “Little fighter,” he replied, voice low, measured. He leaned back against the bar as though he belonged there, as though the Underground itself had given him permission to rest.

Kyoko turned away, giving herself something to do. The handler shoved a wad of crumpled bills into her hands. She counted it without looking, fingers moving on instinct, then stuffed the money into her backpack with practiced efficiency. Survival demanded speed, not ceremony.

A few loose strands of black hair fell into her face. She lifted a hand to push them back, pretending not to notice the way the air felt heavier around him.

She failed.

Even without looking, she could feel his gaze—those pale, unblinking eyes fixed on her like she was a question he hadn’t decided how to answer yet. It wasn’t hunger. It wasn’t creepy. 

It was something completely different.

She shrugged her backpack onto her shoulders, the strap catching awkwardly against her bruised arm. Pain flared, sharp enough to make her hiss through her teeth. Good. Pain was familiar. Pain she could handle.

She took a step back.

Then another.

Just when she thought she was free—right before she turned away and let the shadows swallow her whole—his hand closed around her shoulder.

Firm.

Bruising.

Not sudden, not frantic. Controlled. As if he’d already decided she wasn’t going anywhere.

Her breath hitched. Every muscle in her body locked, fight-or-flight screaming in her skull. She resisted the urge to swing on instinct. Hitting him would be suicide.

“Don’t,” he said quietly.

The word carried weight. Not a warning—an expectation.

Kyoko swallowed, forcing herself to stay still. “You done staring?” she muttered, keeping her voice light, careless. A lie stitched together from scraps of courage.

His grip tightened just enough to remind her he could snap bone if he wanted.

“You fight with conviction,” Stain said. “Not desperation.”

She stiffened despite herself.

“That’s not a compliment,” she replied. “It’s how you survive.”

He released her shoulder slowly, fingers dragging away as if reluctant to let go. The cold absence of his hand was almost worse.

“Survival is empty without purpose,” he said. “Most fighters in this pit swing for money. You swing because you believe.”

Kyoko turned then, meeting his gaze despite every instinct screaming against it. Up close, his eyes were worse—pale and unyielding, like they could peel her apart layer by layer.

“Believe in what?” she snapped. “Getting paid?”

His mouth curved—not a smile, not quite. “In motion. In struggle. In truth.”

She scoffed, though her heart hammered hard enough to bruise her ribs from the inside. “You don’t know me.”

“No,” Stain agreed. “But I see you.”

That was the problem.

h

The noise of the Underground swelled around them—laughter, shouting, the clink of money exchanging hands—but none of it reached her. The world had narrowed again, just like in the ring.

“You will win,” he repeated, softer now. Not a promise. A verdict.

Kyoko tightened her fists at her sides, bandages still damp with blood.

“I already did,” she said.

Stain watched her for a long moment, as if weighing something unseen. Then he stepped back, granting her space at last.

“For now,” he said.

The words fuck off rose to the tip of her tongue—and died there.

She didn’t know why. That annoyed her more than anything else. Kyoko blinked at him, momentarily thrown, her expression edging toward befuddled despite herself. His attempt to keep her attention was clumsy. Almost awkward.

What made it worse was that it was working.

The tall man shifted his weight, spine curving as he slipped back into that familiar hunched posture. Like he was returning to the shape the world expected of him. His hands slid into his pockets, shoulders folding inward.

“Are you hungry?”

The question lingered in the air too long. Heavy. Uncomfortable.

She didn’t answer.

The cheeseburger was delicious.

Kyoko couldn’t remember the last time she’d had one—real meat, warm bread, grease soaking through the paper. Most days, her meals were cans cracked open with sore fingers. Beans. Soup. Whatever she could steal or afford. Sometimes warm. Sometimes eaten cold in the dark.

Stain sat beside her on the bench, eating his own food in silence. He didn’t watch her. Didn’t speak. The only sound between them was the soft crinkle of wrappers and the distant noise of the city breathing around them.

It wasn’t until she swallowed a third bite that she realized her burger was nearly gone.

She froze, staring down at it.

He spoke before she could decide how to feel about that.

“I can get you another one if you’re still hungry.”

Her face twisted, instinctive and sharp. “I’m fine.”

It was a lie, and they both knew it.

Most of her mind was still locked in survival mode, gears grinding and warning lights flashing. Underground legend or not, he was a stranger. A dangerous one. And he had fed her. Nothing in her life had ever been given without expectation.

The burger had been incredible. But that didn’t matter.

She needed distance—now—before he asked for something in return. Before it turned into a favor. Or worse. She’d seen how these things went. She refused to be caught off guard again.

“I know you’re still hungry,” he said calmly. “I can smell it.”

Her discomfort sharpened into something colder.

“What?” The word slipped out before she could stop it.

What did he mean by that?

Kyoko stood abruptly, the bench scraping beneath her as she grabbed her bag and slung it over her shoulder. Her pulse kicked up, fast and loud in her ears.

“I have to go.”

She didn’t wait for permission.

Kyoko was already halfway turned, muscles tight, ready to bolt.

He didn’t reach for her.

That alone felt wrong.

Stain stayed seated on the bench, hands still wrapped loosely around his food. He didn’t rise. Didn’t follow. Didn’t raise his voice or call after her like the others would have.

“Go,” he said.

The word was simple. Unchallenging.

She paused despite herself, one foot hovering just off the ground. Her spine prickled. Slowly, she glanced back.

He wasn’t looking at her anymore.

His gaze had dropped to the pavement, to a dark stain between his boots—oil or old rainwater, she couldn’t tell. His posture had softened, almost passive, as though she were no longer the focus of his attention at all.

“I won’t stop you,” he continued. “I won’t follow.”

Her grip tightened on the strap of her bag.

“Good,” she muttered.

Still, he spoke again—not to trap her, not to command. Just… stating something. Like a fact.

“You should eat more before your next fight.”

She stiffened.

“I said I’m fine.”

“I know,” he replied evenly. 

The words slipped under her skin, quiet and precise.

He finally looked up then, pale eyes steady but distant.\

“I fed you because you were hungry,” he said. “Not because I want something.”

She snorted, sharp and humorless. “That’s never how it works.”

“No,” he agreed. “That’s how men work.”

That made her stop again.

Stain stood at last, but only to take a step back—away from her. Deliberate. Visible. He created space where he could have closed it.

“I won’t touch you,” he said. “I won’t ask for favors. And I won’t take what you don’t offer.”

The words should have been reassuring.

They weren’t.

Because there was no warmth in them. No attempt to comfort her fear. They sounded like rules he lived by—rules that, once broken, would have consequences she didn’t want to imagine.

“You’re free to leave,” he finished.

Kyoko swallowed.

“…Then why are you still talking?” she asked.

His head tilted slightly, that sharp, predatory angle returning for just a moment.

“Because you stopped,” he said. “And because you’re listening.”

Silence stretched between them, thin and taut.

“I won’t follow you tonight,” he added. “But you will see me again.”

Her stomach sank.

“That’s not letting me go,” she snapped.

A pause.

Then—quietly—“It is,” he said. “I am simply acknowledging inevitability.”

She hated that he sounded so certain.

Kyoko turned fully away this time and walked off, disappearing into the maze of alleys and flickering streetlights. She didn’t run. She refused to give him that.

Behind her, Stain remained where he was.

That had only been two years ago.

Somehow, it felt like a lifetime.

So much had changed in that short stretch of time that Kyoko barely recognized the girl she’d been back then—bloodied knuckles, hunger sharp enough to hollow her out, fear sitting just beneath her skin. The Underground itself felt different now, or maybe she was. Older. Harder. More aware of the weight of every choice.

Stain had been a constant through it all.

A strange one.

At first, he’d hovered at the edges of her life—appearing when things went wrong, vanishing just as quickly. Watching. Occasionally intervening. Never asking permission. Never explaining himself. Over time, that occasional presence turned into something steadier. Protection without attachment. Guidance without comfort.

Somewhere along the way, he became one of the only people she trusted.

Not that she would ever say that out loud.

Stain—or Akaguro, the other name he’d reluctantly offered one night, spoken like a confession he wasn’t sure he regretted—had saved her more times than she could count. Pulled her out of situations she hadn’t even realized were lethal until afterward. Made problems disappear before they could sink their teeth into her.

He never asked for thanks.

He never waited for it, either.

He taught her how to fight—not just to win, but to end things. With her fists. With blades. With awareness. He taught her how to move through a room without being noticed, how to read intent in a man’s shoulders, how to decide whether mercy was a weakness or a tool.

He taught her how to survive.

Her quirk was another matter.

She barely knew how to use it. It had surfaced in flashes—instinctive, uncontrolled—only when she was cornered or desperate. A last resort. Something sharp and dangerous she kept buried, like a gun hidden underneath her shirt. The world didn’t need to know. Heroes didn’t need to know.

Maybe part of her liked the idea of surprise.

But mostly, she’d never been taught.

Before Stain, being a shadow had been useless. A flicker of nothing. A trick with no application, no purpose. Something to hide rather than hone.

Stain had seen it differently.

He already knew how shadows worked. “I was once one.”

She had understood what he’d meant by his words, but it still left her with questions.

And more importantly—he promised that he could teach her how she could become one.

“Stand there,” he said, gesturing toward the far end of the warehouse. The building was abandoned, its windows boarded up, light bleeding in only through long cracks in the walls and ceiling. Evening had settled in, dragging shadows across the concrete floor like spilled ink.

Kyoko crossed her arms. “That’s it?”

“Yes.”

She hesitated, then moved where he indicated. The air was cold, damp with old rust and oil. Her breath fogged faintly as she turned back to face him.

Stain stood near the entrance, half-lit, half-swallowed by darkness. Always balanced between worlds.

“Now,” he said, “disappear.”

Her stomach tightened.

“I can’t just—” She cut herself off, jaw clenching. “It doesn’t work like that.”

He tilted his head. “You mean you won’t.”

Kyoko bristled. “I mean I don’t know how.”

Silence stretched between them. The building creaked softly, settling around their presence.

“You become what you already are,” Stain said at last. “You hide.”

“That’s not the same thing.”

“It is,” he replied. “You simply don’t commit.”

She scoffed, nerves prickling. “You make it sound easy.”

“I make it sound necessary.”

That shut her up.

“Close your eyes,” he ordered.

She did—reluctantly.

“Feel where the light touches you,” he continued. “Your skin. Your breath. Shadows exist because light does. You are not erasing yourself. You are choosing where you belong.”

Kyoko swallowed. Her palms were damp. She could feel the dim glow leaking in from the cracks, crawling over her shoulders, her face, her hands.

“Now,” he said softly, “step away from it.”

She tried.

Nothing happened.

Her chest tightened. Frustration flared hot and familiar. “See? This is why I don’t use it.”

A sound—almost a sigh.

Before she could react, something whistled through the air.

Kyoko yelped, ducking instinctively as a blade slammed into the wall behind her, vibrating where it stuck into old plaster. Her heart lurched violently.

“What the hell—”

“Again,” Stain said.

Another blade. This one closer.

Panic surged.

Her body moved before her mind caught up. She stumbled backward, heel slipping—and suddenly the light was gone.

Not vanished.

Avoided.

The shadows surged toward her like water finding its level, clinging to her skin, swallowing the edges of her form. Merging into the darkness around her felt like swimming. 

Taking in her surroundings made her realize that she had become nearly invisible, she knew she was there, but she couldn’t see herself. Like she had dissipated into something that broke physics.

“Oh,” she whispered.

A third blade flew.

It passed through where her shoulder had been, clattered harmlessly to the floor.

Kyoko’s pulse thundered in her ears. Fear roared, then sharpened into something else—clarity. The shadows responded to her panic eagerly, wrapping tighter, pulling her deeper. The warehouse dimmed, light bending away from her like it no longer applied.

She felt lighter. Untethered.

Invisible.

“Good,” Stain said, somewhere far away. “Do not surface.”

Her lungs burned. Holding it took effort. Focus. She trembled, shadows flickering at the edges of her vision, a reminder that this wasn’t just drowning, this was floating.

“I—can’t—” she hissed, accidentally letting in what felt like water in her lungs. It didn’t taste like water, it didn’t taste like anything. 

“Yes, you can,” he said calmly. “You are choosing to breathe like prey. Stop.”

She forced herself to slow down her beginning panic. The shadows steadied, thickened, until she felt less like a girl standing in darkness and more like a gap where a girl should be.

Seconds passed.

Then more.

Her vision tunneled. Her legs shook.

Finally, she collapsed to one knee, the shadows peeling away violently as she retched air into her lungs. Light rushed back in, too bright, too loud.

Her hands shook uncontrollably.

Stain stood over her, eyes sharp.

“That was thirty seconds,” he said. “Next time, we aim for a minute.”

She stared up at him, furious, terrified, exhilarated.

“You could’ve killed me,” she spat.

“Yes,” he agreed. “Which is why you survived.”

He turned away, retrieving his blades.

“Eat,” he added, as if it were an afterthought. “Rest. Tomorrow, we learn how to move while unseen.”

Kyoko watched him go, heart still racing.

For the first time, she didn’t think of her quirk as a dark secret.

She thought of it as a separate entity. The shadows didn’t come from her, they were always there.

She should have known that this strange mentorship meant something.

At first, she’d treated it like a necessity. A transaction without terms. Training in exchange for survival. But somewhere along the way, the lines blurred. To her, it became like having a teacher who crossed a few boundaries now and then—not out of cruelty, but conviction. Like a distant father who only appeared when it mattered most, then vanished before things could become simple.

Stain never said he cared.

He didn’t need to.

It was one of those nights again.

The warehouse was colder than usual, shadows stretching long and obedient across the floor. Her muscles ached in that deep, satisfying way that meant she’d been pushed properly. Sweat cooled on her skin as she sat against the wall, breathing hard.

“Eat.”

He set the food beside her unceremoniously..

Kyoko eyed it warily. “I will.”

“You will eat now.”

She scowled but obeyed, tearing into it with less resistance than she pretended to have. He watched—not her face, but her hands. How fast she ate. How tense her shoulders were.

Training never ended when the drills did.

Silence settled in, thick but not uncomfortable. The kind that didn’t demand filling.

Then, casually—almost awkwardly—he spoke.

“How is boxing?”

She blinked, surprised by the normalcy of it. “Fine,” she said around a mouthful. “Same as always.”

“Anyone bothering you?”

The question was soft. Dangerous in how plain it sounded.

“No,” she replied quickly. Then hesitated. “Not really.”

He nodded once, as if filing it away. No follow-up. No promise. She knew better than to think it ended there.

He cleaned his blade with a scrap of cloth, movements slow and deliberate. “You are faster,” he said. “But you hesitate when you surface.”

“I don’t like it,” she muttered. “Feels like I’m… not there.”

“That is the point.”

She huffed. “Figures.”

Another stretch of quiet.

She finished eating and wiped her hands on her pants, feeling oddly grounded. Safe, in a way she’d never fully admit to herself.

“You don’t have to stay,” she said, not looking at him.

“I know.”

He stayed anyway.

That was how it always went.

And though she’d never call it affection, never name it something as fragile as family, Kyoko understood one thing with unsettling clarity:

When the world closed in, when it mattered most—

He would show up.

Every time.

The arrangement grew more personal than Kyoko ever intended.

Somewhere between training sessions and shared meals, between silent walks home and wounds tended without comment, Stain had grown… comfortable with her. Not softer—never that—but less distant. Less guarded. He spoke more. Watched her less like a subject and more like a responsibility.

That alone should have unsettled her.

It was one of those nights again, the air still buzzing with the aftermath of a brutal match. Her head rang faintly, a dull pressure behind her eyes that made the world tilt just enough to be annoying. She sat on a crate in the back of the gym, legs dangling, one foot bouncing without rhythm.

Her nose was gushing blood.

She pressed a napkin to it, wincing as another wave of dizziness rolled through her. The damage was done—she could already feel the swelling setting in. Stain stood a few feet away, arms folded, posture rigid as he watched her more closely than he probably meant to.

“You should have dodged that last hook,” he said.

She snorted, then regretted it immediately as fresh blood soaked the napkin. “Yeah, well. He got lucky.”

Silence followed. The kind that waited.

Maybe it was the concussion. Maybe it was the adrenaline still crawling under her skin. Maybe it was just curiosity that had been festering too long without a voice.

“Why do you hate heroes so much?”

The words slipped out before she could catch them.

Stain’s body stilled.

Not froze—stilled. Like a predator deciding whether to bare its teeth or walk away.

Kyoko felt it immediately. Her stomach dropped, but it was too late to take it back. She kept the napkin pressed tight, eyes fixed on the concrete between her boots.

“That was a stupid question,” she muttered. “You don’t have to—”

“They lie.”

His answer cut in, sharp and sudden.

She looked up despite herself.

“They wear the title like armor,” he continued, voice low, steady. “They sell justice like a product. They save when it is convenient, when there are cameras. And when there are none—”

He stopped.

For a moment, she thought he was done. That she’d pushed too far.

Then he spoke again, quieter.

“They leave people behind.”

Kyoko swallowed.

“I’ve seen heroes turn away from suffering,” Stain said. “Not because they couldn’t help—but because it wasn’t worth their time.”

His eyes met hers, pale and unflinching. There was no performance in them now. No legend. Just conviction sharpened by experience.

“Power without purity is corruption,” he said. “And corruption must be cut out.”

Her head throbbed. The words pressed into her skull, heavy and unsettling.

“That’s… extreme,” she said weakly.

“Yes,” he agreed. “It must be.”

She exhaled slowly, the napkin finally coming away clean after multiple wipes. The bleeding had slowed. She hadn’t noticed until he paused his speech about his personal manifesto.

“I fight because I like it, it keeps me from going hungry,” she said quietly. “Not because I want to fix the world.”

Stain studied her for a long moment.

“That is good,” he said at last, “you are still honest.”

She frowned. “That doesn’t sound like a compliment.”

“It is,” he replied. “Whether you want it to be or not.”

Stain wanted her to be something more.

She could feel it in the way he trained her—ruthless, unrelenting, never satisfied. In the way he corrected her stance with sharp words instead of praise. In the way he refused to let her spiral the way the Underground so easily swallowed people whole.

He never said I want better for you.

He didn’t have to.

He kept her healthy. Kept her sharp. Kept her out of the kinds of trouble that didn’t make you stronger—only dead. When fights got too dirty, when certain names circled too close, those problems simply… vanished. She learned not to ask how.

Slowly, almost imperceptibly, she changed.

The street rat with too-big gloves and hollow cheeks became something closer to a professional. Her movements tightened. Her reflexes sharpened. She fought with intention now, not just instinct. Even the handlers noticed—better payouts, better opponents, fewer jokes at her expense.

She grew taller. Stronger. Her quirk changed with her.

What had once been a panicked reflex became something more responsive, more patient. The shadows felt less suffocating. Clung longer. Made room for her when need be. Her hair grew past her shoulders, darker, heavier—another reminder that time was passing whether she wanted it to or not.

Stain paid none of it any mind.

Not the hair. Not the bruises she carried longer than usual. Not the way her ambitions bent away from his own. He remained fixed on his own goals, immovable, walking a path so straight it bordered on obsession.

And every week, the news got worse.

Another hero killed.

Another injured.

Another name crossed out, another body left behind as a message. His face was everywhere now—on screens, on walls, on posters slapped crookedly over brick and concrete. Even the Underground whispered his name with a different tone. Less reverence. More fear.

They knew what it meant when the surface world started paying attention.

The walls were closing in.

Stain didn’t slow down.

If anything, he grew more reckless—striking faster, closer to populated areas, daring the Hero Commission to look him in the eye. His so-called justice burned hotter, brighter, less precise. Conviction sharpened into something brittle.

And still, he managed to show up to train her.

Night after night. Bruised, bloodied, sometimes limping. He corrected her footwork. Pushed her limits. Tested her quirk until she shook with exhaustion. Made her eat. Made her rest. Made sure she lived.

It was the strangest kindness she’d ever known.

Kyoko noticed the contradiction long before she named it.

He was preparing her for a future he would never be part of.

And whether he realized it or not, he was running out of time.

That thought scared her more than she liked to admit.

Whether she ever said it out loud or not, Kyoko didn’t know who she would be if he hadn’t bought her that cheeseburger. If he hadn’t wandered into that bar at exactly the wrong—or right—time and watched her fight. In more ways than she could comfortably count, she owed him her life.

Or at the very least, another cheeseburger.

When she awkwardly held out the paper bag, grease already seeping through the bottom, he stared at it like she’d handed him a weapon.

For a moment, she almost snatched it back and threw it at his face.

“Just thought I’d get you one,” she muttered, eyes fixed on the pavement. “Since you probably can’t go anywhere without being noticed.”

He studied her for a beat longer than necessary, then took the bag. Carefully. Like it might vanish if he moved too fast.

“I see you’re making a profit from all that fighting,” he said.

She bit back a laugh, a crooked grin tugging at her mouth. “Yeah. You could say that.”

She sat a few feet away from him on the curb, close enough to share space, far enough to keep her independence intact. The street was quiet. Too quiet. Then—the soft crinkle of paper as he opened the bag.

He ate like he always did. Efficient. Unceremonious.

“You know,” he said around a mouthful, “soon I might disappear.”

The words hit her sideways.

She looked over just in time to see him wipe crumbs from his mouth, expression unchanged. Like he’d commented on the weather.

“I’m surprised you haven’t been put in jail by now,” she said bluntly.

A wheezing laugh slipped out of him. “You see, I am getting older and older. I can’t keep up like I used to.” His gaze drifted ahead, unfocused. “I know it’s going to catch up to me soon.”

He set the rest of his food down on the concrete and turned toward her fully.

“I want you to be ready,” he said. “In case I have to go.”,

Her chest tightened.

He reached into his pocket and pulled out a folded piece of paper, worn soft at the edges. He held it out, waiting.

“If something happens to me,” he said, “go here. Burn what you can’t use.”

She took it without a word, fingers closing around the paper like it might crumble if she didn’t.

“Don’t forget,” he added quietly. “You will win.”

Kyoko stared at the ground, turning the words over in her head. Over and over.

Finally, she looked up at him.

“What do you even mean by that?”

Stain watched her for a long moment. Not judging. Not testing. Just… seeing her.

“It does not mean you will survive,” he said at last. “Or that you will be famous. Or clean.”

Kyoko knew what clean meant, and it surprised her that he was talking about anything that isn’t concretely literal. Was he implying that she would start bumping soon?

She frowned. “That’s comforting.”

A faint, almost human curve touched his mouth.

“It means you will not become empty,” he continued. “You will choose your path. And when the world tries to decide who you are—you will refuse it.”

The city breathed around them. Somewhere far off, sirens wailed.

“You fight because you love it,” he said. “Not because you need to. That is rare. Protect that.”

Kyoko swallowed hard.

She found it hard to believe his words. All she had done her whole life was fight because she had to. That didn’t change, even as he appeared into her life. 

“And you?” she asked. “What is your future?”

He stood, pulling his hood up, already halfway gone.

“I have already chosen,” he said, walking off into the distance with his hands in his pockets.

After he left, the sirens only grew louder.

Kyoko lingered on the curb, watching red and blue lights streak past the end of the street—police cars rushing in the opposite direction of where he’d gone. She tracked them until they disappeared, jaw tight, unease settling deep in her chest.

That was how he worked. Always a step ahead. Always somewhere else.

His cryptic way of planning had always bothered her. Sometimes she wondered if he even knew what his next move was. Or maybe he did—and simply liked keeping it buried, tucked away behind that rigid discipline of his. He had a habit of hiding the Hero Killer side of himself around her. No blood. No speeches. No sermons.

If his intention was to keep her from worrying, it failed spectacularly.

The quiet pressed in too hard, so she started walking.

The Underground at night was a maze of light and decay. Neon signs flickered overhead, advertising bars, clubs, backroom fights. Vendors shouted deals on knockoff hero merchandise—bright plastic masks and cheap figurines of smiling faces that never came down here. The ground was crowded with litter: crushed cans, greasy wrappers, needles she carefully stepped around without looking too closely.

Part of her felt ashamed for how familiar it all was.

But this was home.

The people here—the loud ones, the broken ones, even the dangerous ones—were her neighbors. They watched out for each other in the only ways they knew how.

Eventually, she ducked into a convenience store, the bell over the door chiming weakly. Fluorescent lights buzzed overhead. She drifted toward the drink cooler, staring without really seeing, until she grabbed something cold just to give her hands a purpose.

The man behind the counter was glued to the television, eyes sharp, posture tense. He didn’t even glance at her as she approached.

Kyoko slid the drink and a wad of cash across the counter. The sound finally snapped his attention back where it belonged.

“Crazy stuff on the news,” he muttered as he scanned the item and handed it back.

She hummed noncommittally, then craned her neck toward the screen.

The headline hit her like a punch she hadn’t braced for.

Infamous ‘Hero Killer’ Stain Arrested During an Attack in Tokyo — Many Injured.

Her breath caught.

The footage was grainy. Too bright. Too authentic. Heroes swarmed the screen in polished uniforms, shouting orders. And there—only for a second—was a familiar silhouette, restrained, bloodied, unmistakable.

Her fingers tightened around the bottle.

The man behind the counter shook his head. “Took ‘em long enough,” he said. “Guy was a menace.”

Kyoko didn’t respond.

The noise of the store seemed to fade—the hum of the lights, the murmur of voices from outside—until all she could hear was her own pulse, loud and uneven in her ears.

Soon I might disappear.

The words replayed in her head, cruelly calm.

She picked up her drink, nodded stiffly, and turned toward the door. The bell chimed again as she stepped back out into the night, the Underground swallowing her whole.

The city felt different now.

Smaller.

Like something essential had been pulled out from under it—and under her.

She slipped a hand into her pocket, fingers brushing the folded piece of paper he’d given her earlier. Her grip tightened.

He’d said it because he’d already planned for this. Of course, he did. 

The address on the paper led her to an apartment building tucked between a shuttered clinic and a laundromat that never seemed to close. It looked… normal. Too normal. Beige concrete, unbroken windows, a flickering hallway light that buzzed faintly overhead.

Almost staged.

Kyoko stood outside the door longer than she meant to. The number was scratched into the metal, worn thin like it had been checked too many times. She reached out and twisted the doorknob, half-expecting resistance.

It turned easily.

Unlocked.

Of course it was. Stain knew she would come tonight. He always did. Leaving it unlocked wasn’t carelessness—it was certainty.

The door creaked open.

Inside, the apartment was sparse to the point of austerity. Not empty—deliberately minimal. A single chair sat near the wall, its legs carefully aligned as if it were part of a drill. A low table bore faint knife marks across its surface, grooves worn smooth by repetition rather than neglect.

The kitchenette was barely more than a suggestion. One burner. A dented kettle. A small sink scrubbed so clean it gleamed despite its age. No decorations. No clutter. Everything had a place, and everything unnecessary had been removed.

The air carried the sharp, stale tang of cigarette smoke layered over something metallic—old blood, maybe, or iron from worn blades. It clung to the walls, to the fabric of the curtains that covered the single narrow window. They were always drawn, not for secrecy, but habit.

A thin mattress lay on the floor in the corner, folded with near-military precision. Beside it sat a stack of neatly rolled bandages, antiseptic, and a sewing kit—not for clothes. Above it, taped to the wall, were folded newspaper clippings. Headlines circled in red ink. Names crossed out. Dates written in a sharp, unforgiving hand.

Kyoko’s chest tightened.

This wasn’t a home.

It was a holding space.

Against the far wall, she found his boots—mud scraped off, laces coiled perfectly. Blades rested beside them, wrapped in cloth, cared for with reverence rather than fear. On the counter, a chipped mug sat beside a half-empty pack of cigarettes and a lighter worn smooth by use.

No photos.

No keepsakes.

No proof that anyone had ever stayed long enough to be missed.

She moved slowly, quietly, as if he might step out of the shadows at any moment and correct her for touching something out of place. The silence pressed down on her, thick and intimate.

He had lived here prepared to leave.

Prepared to vanish.

Kyoko swallowed, setting her bag down carefully near the door.

His words echoed through her head.

Burn what you can’t use.

What was there to burn? There was no incriminating evidence aside from the newspaper clippings and a few knives—nothing the heroes didn’t already plaster across the news every other week.

Kyoko muttered to herself in annoyance as she yanked open the drawers, the sound too loud in the quiet apartment. She needed to move fast. Every second she stayed made her skin itch, like the walls themselves might decide to betray her. This place was already a crime scene in spirit, if not in paperwork, and the street rat at the back of her mind kept pacing, teeth bared, waiting for the moment heroes would come crashing in with Quirks blazing and questions she couldn’t answer.

The first drawer was disappointingly mundane.

Clothes. Folded with obsessive precision. Same cut, same color—dark grays, blacks, muted blues. No logos. No variety. The tags had been cleanly cut off, leaving only rough threads behind. Kyoko rifled through them anyway, fingers probing beneath the layers, half-expecting a blade taped to the wood or a hidden compartment.

Nothing.

She sighed out loud, irritation curling in her chest. Even his clothes were disciplined.

The next drawer made her pause.

Medications. Dozens of bottles and blister packs, their labels peeled away so cleanly it was almost surgical. Painkillers, antibiotics, muscle relaxants—she recognized a few from experience. Some were expired. Some weren’t. All of them were organized by size and shape rather than name.

“Figures,” she muttered.

She scooped several into her pocket. If nothing else, they were useful. And useful meant keep.

The third drawer creaked when she opened it, like it had been used less often. Inside lay a single notebook, worn at the edges, the cover bent slightly from being opened and closed too many times. Kyoko flipped through a few pages and felt her stomach tighten.

It wasn’t rambling. It wasn’t madness.

It was belief.

Names. Observations. Lines of ink pressed hard enough to leave grooves in the paper. Judgments written with terrifying certainty. This wasn’t something you burned—it was something you survived.

“Yeah,” she whispered, snapping it shut. “Definitely keep.”

She slid it into her bag with more care than she meant to.

Next was the mattress.

Kyoko lifted it with a grunt, sweat prickling along her neck as she dragged it aside. Underneath were envelopes stuffed with cash, rubber bands stretched thin from overuse. A few credit cards, all under different names. More newspaper clippings, folded and refolded until the ink had begun to fade. Articles about heroes—some exposed, some praised, some dead.

She stared at them longer than she should have.

This was his trail. Not carelessness—history. Proof that he’d been here, that he’d existed beyond the headlines.

Her jaw tightened.

Slowly, she gathered the cash and cards, tucking them away. The clippings she hesitated over, fingers hovering.

Burn what you can’t use.

Kyoko exhaled through her nose, the weight of his words pressing heavier now. The apartment didn’t feel empty anymore. It felt like it was watching her decide what parts of him would survive.

Underneath the coffee table she found a note taped to the bottom.

Kyoko frowned, crouching lower and peeling at the yellowed tape with her thumbnail. Whoever had put it there hadn’t meant for it to be found easily—but it also hadn’t been hidden well. Not for someone who knew how to look.

The paper came free with a soft rip

.

Her eyes skimmed the handwriting and immediately stilled.

It was his.

Not the sharp, condemning script from the notebook. This was looser. Messier. Like it had been written in a hurry—or maybe after a long night.

If you’re reading this, you didn’t listen.

She scoffed quietly. “Yeah, well. You didn’t explain.”

She read on.

There’s a bag in the vent above the shower. Take it. You’ll need what’s inside more than I do now.

Her pulse kicked up.

She glanced toward the bathroom, then back at the front door. Still quiet. Still clear. Sirens wailed somewhere far above the Underground, their sound muffled and warped by concrete and distance. Time was slipping through her fingers.

Don’t bring anyone here. Don’t trust heroes. Don’t trust villains either.

That earned a huff of breath through her nose. Typical. Trust no one. Except, apparently, her.

The last line made her pause.

If they tell you what I was, don’t believe them. Decide for yourself.

Kyoko folded the note quickly and shoved it into her pocket.

For a moment, she stayed crouched there, heart thudding in her ears. The apartment felt different now—smaller. Heavier. Like it was aware she’d crossed some invisible line, moved from guest to something closer to inheritor.

She stood and headed for the bathroom.

The vent was exactly where he’d said it would be. Of course it was. She dragged a chair over, climbed up, and unscrewed the loose grate. Dust fell into her hair, and she wrinkled her nose, coughing under her breath.

Her fingers brushed fabric.

She pulled down a worn duffel bag, heavier than it looked. When she unzipped it, the contents made her chest tighten.

Clothes. Sturdier than the ones in the drawers. A hood. Gloves. Boots her size—or close enough. A small first-aid kit, better stocked than the one she’d already found. A burner phone. A folded map of the Underground with certain routes circled in red.

And at the very bottom—

A knife.

Not one of the brutal, utilitarian ones she’d seen before. This one was simpler. Balanced. Well cared for.

Kyoko stared at it for a long moment, then zipped the bag shut.

“Ready for what,” she murmured to herself, slinging the strap over her shoulder.

The street rat in her head was screaming now. Go. Now. You’ve stayed too long.

She took one last look around the apartment—the bare walls, the ashtray by the sink, the quiet proof of a man who had lived here like he was already halfway gone. 

She grabbed his cigarettes and stuffed them into her bag.

Then she picked up his lighter.

It felt heavier than it should have—scratched metal, warm from her palm, familiar in a way that made her chest ache. She flicked it once. Nothing. Twice. The third strike sparked, a clean blue-orange flame blooming to life.

Kyoko stepped up to the wall.

The newspaper clippings stared back at her in overlapping layers—headlines screaming HERO KILLER STRIKES AGAIN, grainy photos of blood-stained streets, red circles drawn around faces that had once smiled for cameras. Dates. Names. Lies tangled with truth. Proof of a man the world thought it understood.

Her thumb hesitated.

“Sorry,” she murmured, unsure who she was saying it to. Him—or herself.

She pressed the flame to the corner of one clipping.

The paper curled instantly, blackening, the fire racing greedily along the ink. It leapt from article to article, heat blooming fast, too fast, licking up the wall like it had been waiting. The smell hit her next—burning paper, old ink, something sharp and bitter underneath.

The flames crawled downward, caught the edge of the carpet.

“Shit.”

She backed up, heart pounding, but she didn’t turn away. Not yet.

She stood there and stared them down one last time as they burned—every accusation, every title, every stolen image of the man who once been her very own hero.

The fire crackled, hungry and alive.

Kyoko swallowed hard, then turned on her heel.

By the time she slipped out the door, smoke was already crawling toward the ceiling, and Stain’s past was turning to ash behind her.

Some things were better off burned. 

The map was a mess.

Kyoko spread it out across the motel bed, the thin paper refusing to lie flat, curling at the corners like it wanted to fold back into itself. Red circles overlapped one another, arrows doubled back, streets crossed out only to be rewritten at harsher angles. She’d known these roads her whole life—every shortcut, every dead end, every alley you could disappear into if you ran fast enough—and still, she could barely make heads or tails of what it was supposed to mean.

It wasn’t a route.

It was layers.

She frowned, dragging a finger along a familiar block, then stopping where the ink abruptly veered off into nonsense. “You’re doing this on purpose,” she muttered, half amused, half frustrated. Even now, he couldn’t just leave her something simple. It felt like him—forcing her to think, to question, to earn the answer.

Kyoko had decided to stay in a motel for the night. It wasn’t much—flickering neon outside the window, a bed that smelled faintly of bleach and old smoke—but it was private. She didn’t really have a place to stay anymore, not one she trusted, and she needed time alone. Time to breathe. Time to sit with the weight of what he’d left her and figure out what parts of it were instructions and what parts were goodbye.

In any other circumstance, she’d just hand over some cash in exchange for someone’s couch. A favor here, a promise there. That was how the Underground worked.

But tonight, she didn’t want eyes on her.

She dropped onto the bed beside the map, boots still on, and stared up at the water-stained ceiling as a car passed outside, headlights slicing briefly through the thin curtains. Her bag sat heavy at her side, full of things she hadn’t owned yesterday and responsibilities she hadn’t asked for.

Somewhere in that mess of red ink was a path he thought she could walk.

Kyoko exhaled slowly, rolling onto her side and pulling the map back toward her.

“Alright,” she murmured. “Let’s see what you were trying to teach me.”

The answer didn’t come all at once. She’d spent nearly a week cooped up in the motel, only ever leaving to attend boxing matches. Mainly so she could continue to afford to stay in the room for as long as possible.

It came in pieces—small, irritating pieces that refused to line up until Kyoko stopped trying to force them.

She lay on the motel floor now, the map spread wide, held down at the corners by her boots, the burner phone, and a half-empty cup of instant noodles. The neon outside pulsed through the curtains, painting the paper in sickly pinks and blues, making the red ink look almost black.

Kyoko traced one of the circled intersections with her finger.

“That doesn’t make sense,” she muttered.

It was a dead end. Literally. A bricked-up alley behind an old tailor shop that had burned down years ago. No exits. No cameras. No reason to mark it—unless you were looking at it wrong.

She sat up abruptly.

“…unless you’re not meant to go there.”

Her gaze snapped back to the map.

The circles weren’t destinations.

They were lines of sight.

Kyoko grabbed the motel pen and began sketching lightly over the map, connecting the circled points—not by roads, but by angles. She drew imaginary lines the way she’d been taught to watch an opponent’s shoulders, the way you read where a punch was going before it landed.

The pattern shifted.

The chaos narrowed.

A shape began to form.

Her breath caught.

“Holy shit.”

She scrambled to her feet, pinning the map to the wall beneath the buzzing light. From this angle—from above—it was obvious. The crossed-out streets weren’t mistakes. They were warnings. Areas with patrol overlap. Camera coverage. Escape routes that looked good but funneled you into traps.

What remained—what he’d left untouched—were the blind spots.

Paths you could move through unseen.

Places where the city itself looked the other way.

Kyoko laughed once, sharp and disbelieving. “You’re insane,” she said, affection bleeding into the insult. “You know that?”

She leaned closer.

There were symbols too, now that she knew how to read them. A small slash here—hide. A double mark—wait. A star she recognized immediately.

Food. Safe. No questions asked.

Her throat tightened.

This wasn’t a plan for him.

It was a blueprint for survival.

He hadn’t just shown her where to go. He’d taught her how to see the city the way he did—not as streets and buildings, but as intention and movement. Pressure points. Shadowed veins running beneath the surface.

Kyoko sank back onto the bed, the map clutched to her chest, heart pounding like she’d just won a fight she hadn’t known she was in.

“You really think I can do this without you,” she whispered.

The map didn’t answer.

But for the first time since she’d seen his arrest on the screen, the fear in her chest eased—just a little.

She folded the map carefully, deliberately.

Stain had vanished.

But he hadn’t left her blind.

She could win.

Kyoko made a point to disappear more often.

Heroes had taken a sudden, invasive interest in the Underground since Stain’s arrest—like vultures circling a carcass they’d somehow missed for years. Patrols multiplied overnight. Flashy costumes stood out like neon scars against concrete and grime. They asked questions they already thought they knew the answers to, smiling too wide, hands always hovering just close enough to their weapons to make a point.

Probably because he’d managed to hide from them here for so long.

Of course, the people of the Underground weren’t happy.

Most residents stared the heroes down with open hostility, eyes sharp and unblinking. Some turned their backs outright. Others went further—refusing to serve them food, locking doors when they saw capes coming down the street, pulling their kids inside like the heroes were the danger.

Kyoko watched it all from the edges, hood up, shoulders low.

It was really the heroes’ own doing. Years of neglect didn’t vanish just because they showed up in force. They tried to make amends—public apologies, offers of protection, awkward attempts at kindness—but it rang hollow. You couldn’t patch over rot with smiles. Not when people remembered who’d been absent when it mattered.

So the heroes were shunned.

And Kyoko slipped through the cracks. 

At first, she told herself she was just trying to familiarize herself with Stain’s new interpretation of the Underground. Learning how he had seen it. Testing the routes, the blind spots, the places the city folded in on itself and forgot to watch.

But curiosity turned into habit.

Soon, it became routine.

Every night, before she returned to the ring, Kyoko ran her own quiet patrol of the district. No costume. No announcement. Just boots on concrete, fingers grazing brick as she climbed fire escapes and crossed rooftops like they’d been built for her alone. She watched the way patrol lights swept streets in predictable arcs, the way footsteps echoed differently when a hero was nearby, the way fear and resentment clung to the air like humidity.

Boxing had become her only source of income.

She didn’t need to scrape by on odd jobs anymore, didn’t need to run errands for people who asked too many questions or paid too little. That freedom bought her time—time to walk longer routes, to linger in the shadows, to learn the rhythm of the Underground the way she once learned the rhythm of a fight.

And she was good at it.

She made great money too. Grimm—her other persona, the one whispered about between fights—was gaining traction. Crowds packed in tighter when her name was on the board. Bets climbed higher. Promoters started sniffing around, offering her fights in other bars, other districts.

It thrilled her.

It terrified her.

The attention was a double-edged thing, sharp and shining. Every cheer felt like a spotlight. Every new offer felt like a step closer to being seen.

Heroes were exploring deeper into the Underground now, pushing past the main streets, nosing into places they’d once pretended didn’t exist. From Kyoko’s nightly observations, she could tell—they were getting closer. Closer to the bars she fought in. Closer to the routes she used. Closer to her territory.

She tightened her wraps before a fight one night, jaw set, pulse steady.

Grimm thrived in the ring.

But Kyoko knew—eventually, the Underground wouldn’t be big enough to hide both of them.

The ring felt tighter than it used to.

Kyoko told herself it was just the crowd pressing in—the heat, the noise, the way bodies leaned too close to the ropes like they wanted to fall into the fight with her. Still, she rolled her shoulders and adjusted her stance, grounding herself the way she’d been taught. No bouncing. No wasted motion.

Across from her, her opponent cracked his neck and smiled.

He was bigger than her by a lot. Broader shoulders. Longer reach. The kind of build that crushed smaller fighters if they got careless. His mouth was twisted half smirk, sizing her up. 

She didn’t need to hear him, but she knew for certain he was mouthing too easy/

The crowd loved him already. She could hear it in the way they shouted his name.

Kyoko didn’t care.

The bell rang.

He came out fast and brutal, throwing his weight behind every punch like he meant to end it early. Kyoko barely got her guard up before a hook slammed into her forearms, the impact stinging all the way to her elbows. She slid back, boots skidding on the canvas.

Too strong, she thought, jaw tightening.

She circled instead of charging in, eyes locked on his hips, his feet. That was new. Before, she would’ve focused on his hands, panicked, reacted too late. Now she read the way his balance shifted before he struck.

His next punch grazed her cheek. Heat flared across her skin.

“C’mon, Grimm!” someone yelled.

She ducked under a wild swing and answered with a jab to the ribs—not enough to hurt, but enough to remind him she was still there. He grunted and shoved forward, forcing her back into the ropes.

Pain bloomed sharp and sudden as his elbow clipped her shoulder. Kyoko hissed, vision flashing white for half a second.

Don’t run, Stain’s voice echoed in her memory. Reposition.

She slipped sideways at the last second, letting him crash into the ropes instead. The ring shuddered. He turned too slow.

Her fist met his jaw—but it wasn’t clean. Her wrist screamed in protest, and he barely staggered.

“Shit,” she muttered.

The next few seconds were ugly.

He landed a solid hit to her stomach that knocked the air from her lungs. Kyoko folded instinctively, arms dropping just long enough for a glancing blow to rattle her skull. The crowd roared, blood pounding in her ears.

She tasted copper.

Old Kyoko would’ve panicked.

This Kyoko locked her teeth together and breathed.

Short. Controlled. In through the nose, out through the mouth.

She changed the rhythm.

Instead of trying to overpower him, she let him chase her—small steps, constant angles. She hit only when she was sure she could get out. A jab to the shoulder. A hook to the liver. Nothing flashy. Nothing heroic.

He slowed.

Just a little.

Sweat dripped into her eyes, burning. Her legs ached. Every breath hurt. When he swung again, she didn’t have the speed to fully dodge—so she took it on her guard, stepping into him instead of away.

The impact rattled her bones.

But she was close now.

Kyoko drove her shoulder into his chest and followed with a short, desperate uppercut. Then another. Her knuckles screamed. Her vision blurred.

One more.

She twisted, putting everything she had left into a final punch to his chin.

It wasn’t pretty.

It was just enough.

He stumbled, tried to stay upright—and then his legs gave out. He hit the canvas hard, the sound echoing through the ring.

Kyoko backed away on shaking legs, chest heaving, arms heavy at her sides. She barely heard the ref counting, barely registered the bell when it rang again.

When the announcer shouted “Grimm wins!”, it felt distant.

She stayed on her feet by sheer stubbornness alone.

Blood trickled from her nose. Her hands throbbed. Her body screamed for rest.

But she was standing.

And that meant she’d won.

While retrieving her share of the winnings, people stopped her constantly.

Some clapped her on the shoulder, grinning wide as they congratulated her. Others leaned in close, voices low, offering fights elsewhere—better venues, bigger crowds, real money. Kyoko listened with the same detached patience she used in the ring. She nodded when it was convenient. She smiled when it was expected.

To them, she was a tiger no one could quite tame.

And like any dangerous thing, people were obsessed with fixing her.

They promised better pay. Cleaner conditions. Real training. Others tried softer approaches—favors slipped into conversation, flowers shoved awkwardly into her hands, offerings of pleasure dressed up as generosity. Tips were pressed into her palm like she was a waitress instead of a fighter who had just bled for their entertainment.

She hated that part most.

The men were worse.

Sleazy smiles. Lingering hands. Offers for rides to apartments she didn’t own, invitations to homes that weren’t hers, all of them wanting to say they’d had her—if not in the ring, then somewhere more private. Their interest wasn’t in her, not really. It was in the idea of her. The myth. The violence wrapped in a pretty name.

None of them stood out.

Not anymore.

Not since Stain had become a permanent fixture in Tartarus.

The news said he’d earned at least twenty life sentences—long enough that his body would fail before his will ever did. Long enough that, one way or another, he’d never walk the Underground again. Kyoko understood what that meant. One of her most tolerated audience members wouldn’t be watching from the bar anytime soon.

And the absence was louder than she expected.

Still, she kept moving forward.

Kyoko continued her path toward becoming a real professional boxer, even knowing what it would cost her. Eventually, she would have to part ways with the dingy bar—the illegal ring tucked into the worst strip of the Underground—the very place that had let her survive long enough to become someone worth watching.

That wasn’t the only problem.

There was credibility.

How did a fighter with no official record step into a sanctioned ring? Her matches were illegal. Her scores undocumented. Her wins whispered about and then burned away before they could ever reach the heroes’ attention. Everything that proved her strength existed only in memory and rumor.

If she left, the only proof she had was word of mouth.

And while that carried her far in the Underground;

It meant nothing above it.

It wasn’t until months of walking the routes Stain had left behind that Kyoko finally found something worth stepping in for.

A girl—maybe her age, maybe a little younger—stood beneath a flickering streetlight at the mouth of an alley, jacket pulled tight around herself despite the heat. She kept glancing down the street, counting footsteps, watching shadows. Busy doing her job.

A job no teenager should ever be forced to do.

This was her corner. Kyoko could tell by the way she stood—careful not to lean, careful not to look too eager, careful not to disappear. Trying to earn cash the only reliable way the Underground ever offered girls like her.

By selling yourself. Or pieces of yourself. Or whatever you could get away with losing that night.

Kyoko had gone down another path, but not by much.

She’d seen girls like her outside the bar plenty of times, drifting in slow circles, waiting to be noticed between fights. Same performance. Same quiet negotiation. The difference was in the pain. Kyoko’s pain was loud—sharp punches, split skin, bruises you could tape over and explain away. It ended with a bell.

What happened to these women followed them home.

Blood could be scrubbed out of canvas and clothes. What they carried couldn’t be washed off. It settled in their chests, sank into their bones, lingered long after the night was over.

In a way, Kyoko respected them more than she respected herself.

The deal started going wrong fast.

The man’s voice dropped, losing its false friendliness. His hand shot out and caught the girl’s wrist, fingers digging in hard enough to make her wince. She stiffened, eyes darting, already running through exits that didn’t exist.

Kyoko felt heat flare behind her ribs.

This, she understood. This was why Stain had protected his neighbors. Why he’d drawn lines in blood where heroes never bothered to look. This was what justice looked like down here—quiet, ugly, and necessary.

The fight started before the girl was even pulled closer.

Kyoko stepped into the alley, boots crunching over gravel and broken glass. She didn’t announce herself. Didn’t raise her voice. This alley was one of the blind spots she’d memorized—no cameras, no patrols, the city turning its back.

Perfect.

The man turned, annoyance already forming on his face—then froze.

Kyoko rolled her shoulders once, hands loose at her sides.

“Let her go,” she said flatly.

He laughed. Then his smile sharpened.

The knife grew out of his hand.

Metal slid from his knuckles like it was being drawn from under his skin, forming a long, jagged blade that caught the alley light in ugly flashes. A knife quirk. Of course. The Underground loved knives—cheap, personal, final.

The girl gasped.

Kyoko didn’t flinch.

“Run,” she told the girl, eyes never leaving him.

The girl didn’t need to be told twice.

The man lunged.

Kyoko moved on instinct, stepping inside the arc of the blade as it slashed where her throat had been a second earlier. She felt the air shift, heard the hiss of metal slicing nothing. Her elbow drove into his ribs, hard enough to make him grunt, but not enough to stop him.

He swung again, faster this time. Kyoko barely ducked, the blade nicking her shoulder, heat blooming instantly. She hissed and pivoted, boots sliding on damp concrete.

Watch the feet. Close the distance. Don’t let the weapon breathe.

She feinted left, then crashed into him, shoulder-first. The blade scraped along her forearm, drawing blood, but she was already inside his reach. Her fist slammed into his jaw. He staggered—but didn’t fall.

He was stronger than she expected.

His knee caught her thigh, sending a sharp jolt up her leg. Kyoko stumbled, catching herself against the wall just as the knife flashed toward her stomach. She twisted, letting it glance off her hip instead, pain flaring hot and bright.

She tasted copper.

“Should’ve stayed outta it,” he snarled.

Kyoko smiled thinly.

“Yeah,” she breathed. “I’ve heard that a lot lately.”

Maybe she was exaggerating a little, considering that with the loss of her companion, she hasn’t heard it in a month.

She shifted her stance, lower now, tighter. No wasted movement. When he swung again, she trapped his wrist between both hands, ignoring the way the blade bit into her palm. She twisted hard, forcing his arm up, then drove her forehead into his nose.

Bone crunched.

He screamed. The knife flickered, metal retracting unevenly as his focus shattered. Kyoko didn’t give him time to recover. She followed with a brutal punch to the throat, then another to the temple.

He went down hard, gasping, clawing at the ground.

Kyoko backed away on shaking legs, chest heaving, blood dripping from her arm to the concrete. She kept her guard up until he stopped moving entirely.

Only then did she turn back toward the street.

The girl was gone.

Good.

Kyoko wiped her bloody hand on her pants and melted back into the shadows, heart still pounding.

As she stared at herself in the mirror, the thought settled in slowly, heavily—she was forgetting herself.

Not all at once. Not in some dramatic revelation. It was in the small things. The way her hands moved on autopilot. The way hunger barely registered anymore. The way she pressed forward through pain without pausing to assess it properly.

She was completing whatever task Stain had left her, piece by piece, and losing herself in the process.

Worse still, she knew why it was so complicated.

He wasn’t there anymore to shove food into her hands and glare until she ate. No low, irritated commentary about sloppy stitches or improper pressure. No corrections when she held herself wrong, no reminders that technique mattered just as much outside a fight as inside one.

After stepping in to save that girl, the realization had hit her harder than the knife ever could.

She didn’t have a guardian angel anymore. She didn’t have anyone to lean on when issues like these pulled her deeper into old habits

No one guiding her toward the light—or, more accurately, toward the shadows where she belonged.

She swallowed and met her own gaze in the mirror.

She was what they had now.

The Underground’s new guardian angel.

And that meant she had to do it alone. Because that was what Stain had done. If she was going to be a vigilante—if she was going to earn that title—she had to do it right.

She had to stop asking herself what Stain would do, and instead wonder what Grimm would do. Her much more badass persona would be disappointed beyond belief at the way Kyoko handled that fight.

Her hair hung damp around her face, poorly dodged rainwater and sweat clinging stubbornly to her skin. Strands stuck to her cheek as she lifted her shirt with her teeth, jaw aching as fabric pulled tight between her molars. It was an ineffective method, and she knew it, but she didn’t have a third hand to spare.

The wound on her stomach stared back at her.

Not deep enough to kill her. Deep enough to matter.

She exhaled slowly through her nose and reached for the supplies laid out on the sink—things she’d taken without thinking, habits drilled into her by repetition. Gauze. Antiseptic. Thread. Needle. Her hands trembled just a little as she poured the antiseptic over the cut.

The sting was immediate and vicious.

She sucked in a sharp breath, teeth clamping down harder on her shirt as white-hot pain flared across her nerves. Her vision swam for a moment, spots blooming behind her eyes.

“Don’t rush it,” she murmured to herself, echoing a voice that wasn’t there anymore.

She dabbed the wound clean with gauze, careful but firm, wiping away blood until the edges were visible. The skin around it was angry and red, swelling already setting in. She paused, letting her breathing even out before threading the needle with hands that refused to be as steady as she wanted.

Her first stitch wasn’t perfect.

Too tight.

She hissed under her breath but didn’t undo it. Instead, she adjusted—looser on the next one, angling the needle more carefully, pulling the skin together just enough. Her fingers were slick with blood and antiseptic, knuckles aching from the fight, but she worked through it.

In. Through. Pull.

She counted each stitch quietly, grounding herself in the rhythm. Pain pulsed with every movement, a dull throb that reminded her she was still human. Still fragile. Still capable of being hurt.

By the time she tied off the final knot, sweat had broken out along her spine. Her jaw ached from holding her shirt up so long, and when she finally let it fall, the fabric brushed against the fresh stitches, making her wince.

She cleaned the area one last time, layered gauze over it, and secured it with practiced care.

Kyoko leaned closer to the mirror, forehead resting briefly against the glass.

She looked tired.

Older than she was supposed to.

But her eyes were still sharp. Still burning.

“No shortcuts,” she whispered.

Because there was no one left to remind her.

And if she was going to protect the Underground, she had to survive it first.

Kyoko’s life became a careful balancing act—one she performed on bruised knuckles and sleepless nights.

By day, or whatever passed for it in the Underground, she trained. The ring was still her anchor. Boxing paid the bills, kept food in her stomach, and gave her an outlet for violence that wouldn’t immediately put her on a hero watchlist. She wrapped her hands with ritual precision, ran drills until her muscles screamed, learned how to hit without shattering herself in the process. Every fight sharpened her instincts, refined her timing. Every win made her more dangerous.

Every win also made her more visible.

By night, she vanished.

She moved across rooftops and through alleys mapped into her bones, retracing the routes Stain had left behind while carving new ones of her own. She listened more than she acted, watching how heroes patrolled, how they rotated shifts, how certain streets became safe only because someone else was watching them. She stepped in when she had to—quiet interventions, broken bones instead of bodies, disappearances that left behind nothing but shaken perpetrators and breathing victims.

She learned restraint the hard way.

A vigilante who drew too much blood didn’t last long.

Dodging heroes became its own discipline. Kyoko treated it like a fight—reading tells, predicting movement, never committing to a path she couldn’t escape from. She learned which heroes relied too much on their quirks, which ones followed patterns, which ones hesitated when things got messy. She avoided them all. When she couldn’t, she melted into crowds or shadows, leaving only confusion behind.

Still, the pressure mounted.

The Underground buzzed with rumors. Someone was cleaning up corners that had been left to rot. Someone was interfering with deals, scaring off predators. They claimed that whoever would do such a thing would have to be some random copycat of the previous watchmen that kept the streets cleaner.

Kyoko pretended not to hear it.

Balancing both lives took its toll. Some nights she stumbled into the ring already exhausted, muscles sore from rooftop sprints and alleyway brawls. Other nights she left fights early, slipping out before congratulations could turn into questions. Her body became a patchwork of healing injuries—stitches hidden beneath wraps, bruises explained away as sparring accidents.

She ate when she remembered. Slept when she could.

There was no one to stop her anymore.

Yet somehow, she kept going.

Because boxing taught her how to endure pain, and vigilantism taught her why she was enduring it. One fed the other in a vicious, self-sustaining loop. The ring kept her sharp. The streets kept her honest.

Heroes came closer every month. Patrols tightened. Faces began to linger in her memory longer than they should have. She knew it couldn’t last forever.

But Kyoko had learned something important from Stain, even in his absence:

Survival wasn’t about being untouchable. It was about knowing when to strike, when to vanish, and how long you could stay standing before the next bell rang.

Moving on from him felt like a slow, disorienting kind of grief—like mourning someone who was still breathing, just no longer part of the world. In every way that mattered, he was gone. His philosophy stopped circulating. The news outlets ran out of ways to keep his name in circulation. The updates on his imprisonment dried up, the debates about his victims replaced with the next disaster, the next villain, the next hero failure. Within months, it was as if he had never existed at all.

That alone caused Kyoko to be more furious with the world.

Her favorite part of the day became a small, stubborn ritual: stopping at one of the battered newspaper boxes before entering the ring. The coins were worth throwing away, the papers smudged with ink and grime, but the routine kept her anchored. At first, she dreaded it. His trial had been impossible to ignore—sensationalized headlines, looping footage, talking heads dissecting a man none of them had ever known. It was a dumpster fire she couldn’t turn away from.

And then it ended.

One day there was no mention of him at all. No follow-ups. No retrospectives. A legend reduced to a cautionary footnote—a fable about what happened when heroes ignored the Underground for too long. The city moved on, satisfied with the idea that the problem of corruption had been ‘solved.’

Of course, nothing actually changed.

If anything, the Underground drew more attention than ever.

Heroes and authorities flooded the district in the aftermath, eager to prove control where they had once failed. Bars were shut down for vague violations. Unlicensed businesses disappeared overnight. Corners that had sustained people for years—sometimes generations—were erased in the name of order. Even harmless stands selling drinks or food were dismantled if they didn’t fit neatly into regulation.

For Kyoko, that meant intervention became routine.

She broke up more fights, scared off more predators, redirected trouble before it spilled into something worse. It was exhausting, but familiar. The streets were louder now, more tense, like an animal that knew it was being watched.

Ironically, it worked in her favor.

With most underground fight pits shuttered or exposed, the one she fought in grew more valuable by the week. It was better hidden, better protected, and word spread fast. Bettors flocked to it, desperate for somewhere to gamble that hadn’t been crushed under hero oversight. The fights grew more intense. The payouts grew heavier.

Kyoko knew it couldn’t last.

She’d already accepted that one day she’d have to disappear again, find a new refuge before this one collapsed under attention. But for now, she leaned into it. The money was good. The respect was real. The violence was honest. It was better than stealing, better than running hungry and invisible through streets that pretended she didn’t exist.

For the moment, the risk was worth it.

Sometimes her nightly patrols went south—but not loudly.

Kyoko had come to accept a quiet, unforgiving rule: as long as the other person was down, her own condition didn’t matter. Pain could wait. Blood could be dealt with later. Crime didn’t care about her limits, and neither could she.

Despite the surplus of heroes flooding the city above, crime in the Underground only grew more refined. What couldn’t exist in the open learned how to survive in the dark. Subtle operations replaced obvious ones. Deals happened in whispers. The same players who once thrived in plain sight were still hunting for income, only now they were hungrier. Meaner. And the worst of the worst—those who didn’t rely on desperation, only appetite—grew stronger in the cracks left behind.

That left Kyoko with slack to pick up.

That night was unusually calm. The kind of calm that felt rehearsed.

She moved slowly through the alleys, hands in her pockets, footsteps barely making a sound against damp concrete. The Underground breathed differently at this hour—vendors shuttered, lights dimmed to save power, steam curling up from grates like tired ghosts. Somewhere nearby, a radio played an old love song through a cracked speaker, its notes warped but gentle.

It almost felt peaceful.

Then she smelled it.

Not blood—something older. Chemical. Rotting and wrong, like metal left too long in water.

Kyoko stopped.

At the far end of the alley, something moved.

At first, she thought it was just a man swaying on his feet. Tall. Broad. Too broad. His silhouette bent strangely under the flickering streetlight, joints bending at angles that made her skin prickle. One arm dragged along the wall, fingers scraping brick with a slow, mindless patience.

Nomu.

Her chest tightened—not with fear, but with a quiet, grounded focus. This wasn’t a mugger. This wasn’t a deal gone wrong. This was a leftover mistake. One that shouldn’t have been here. She’d seen them on the news, but they were all supposedly subdued in Tokyo. Such unapologetic monster, a real life frankenstein.

The Nomu’s head twitched, jerking sharply in her direction. Milky eyes locked onto her with no recognition behind them—only instinct. Hunger without thought.

Kyoko exhaled slowly.

“Easy,” she murmured, more to herself than to it.

The creature lurched forward, footsteps heavy and uneven, every movement cracking with barely contained strength. As it charged, she stepped aside instead of back, letting it slam into the wall where she’d been standing a second before. Brick shattered. Dust bloomed into the air.

She moved through the haze like water.

Every strike was deliberate. No wasted motion. She aimed for joints, tendons, pressure points Stain had drilled into her until her muscles learned them better than her mind ever could. The Nomu didn’t feel pain—not really—but it felt resistance. It felt disruption.

Still, it was strong.

Too strong.

A massive hand clipped her shoulder, sending her skidding across the ground. She rolled once, twice, came up on one knee. Her vision swam briefly, then steadied. The rain finally started to fall, soft at first, tapping against concrete and skin alike.

Kyoko wiped blood from her lip with the back of her hand and stood.

She lunged again—but this time, the Nomu stalled.

Not slowed by her strike.

By something else.

A pressure crawled across her skin, subtle but unmistakable. Like the air itself had gone thin.

The Nomu let out a distorted snarl, movements suddenly jerky, uncoordinated. Its strength didn’t vanish—but it lost something essential. Focus. Balance. Intent.

Kyoko froze.

“…You’ve got to be kidding me.”

A voice answered from above, dry and exhausted.

“Try not to get yourself killed. I was hoping you’d back off.”

She looked up.

Perched on a fire escape, half-swallowed by shadow and rain, was Eraserhead.

Shouta Aizawa watched the scene with tired eyes, capture weapon already unspooling from his arm. His hair floated slightly despite the rain, proof enough that his Quirk was active.

She knew who he was.

In a past life, he was once a part of the Underground District. His mother still worked as a seamstress for a factory west of the entrance. Kyoko had sought out her help more times than she could count—ripped gloves, torn jackets, poorly stitched bandages. Each visit ended the same way: careful hands, blunt advice, and a piece of candy pressed into her palm.

For energy, she’d always said.

His mother adored him. She talked about him like he was a miracle that made it out. Pointed him out in old family photos. Told Kyoko how he’d moved away.

A hero.

Here.

In her alley.

“I don’t need help,” Kyoko snapped, already moving again.

“I know,” he said flatly. “You’re still taking it.”

The Nomu surged, wild now, sloppy with rage instead of precision. Aizawa’s binding cloth snapped forward, wrapping around its arm and yanking it off-balance just long enough.

Kyoko didn’t hesitate.

She struck hard—harder than before—every blow landing with purpose, not hesitation. With its Quirk suppressed, the Nomu felt closer to something breakable. Still dangerous. Still monstrous. But no longer unstoppable.

They moved around each other without planning it.

Aizawa kept distance, controlling space, adjusting angles like he was solving a problem instead of fighting a monster. Kyoko closed in relentlessly, punishing every opening he created. When the Nomu got too close to skin, she disappeared into the shadows, reappearing from behind to disorient it before it could catch up.

Aizawa noticed.

He didn’t comment.

When the Nomu finally collapsed, it did so with a sound like a building giving up.

It twitched once.

Then went still.

Silence returned.

The rain fell heavier now.

Kyoko stood over the body, chest heaving, rain plastering her hair to her face. She pressed a hand to her side and hissed—but stayed standing.

When she could finally muster her poker face, Aizawa had dropped down from the fire escape. His Quirk deactivated, hair falling limp against his shoulders, capture weapon retracting with a soft metallic sound.

They didn’t look at each other right away.

“Why are there Nomu in my district?” she asked, wiping her nose.

The hero tilted his head slightly, like he was deciding how honest to be. “They’ve been found all over Japan lately. I wouldn’t be surprised if this one wandered down.”

Kyoko’s jaw tightened.

“Do you really believe that?” she shot back. “That this thing just wandered past your fences? Your patrols?” She gestured sharply at the Nomu with her boot. When she nudged it, thick, dark fluid oozed out onto the pavement. “You people make no sense.”

Aizawa sighed, rubbing at his tired eyes. “You sound like you’ve given this a lot of thought.”

“Someone has to.”

He reached for his radio.

“Calling in backup?” she asked immediately.

“Not yet,” he replied. “Depends on what you do next.”

She snorted softly. “You make it sound like you’re expecting me to run.”

“I am,” he said honestly.

That gave her pause.

The girl was planning to run. She had already mapped her exit—fire escape, rooftop, alley split three blocks over. She could see the dotted lines in her head. The arrows. Standing in front of a hero this long went against every instinct she had.

The radio down the street kept playing.

For a moment, neither of them moved. Just two people standing in the aftermath, rain washing blood into the gutters.

“This isn’t your job,” Aizawa said at last. Not accusing. Just tired.

Kyoko finally looked at him. Really looked.

“Then do yours better,” she said quietly.

He held her gaze.

“I’m trying,” he replied.

The honesty in his voice unsettled her more than anger would have.

“You’re probably still in high school,” he added after a moment, eyes narrowing slightly. “But definitely don’t fight like it. How did you learn moves like that?”

She bristled at his words, stepping back. “Are you planning to arrest me now?”

“No,” he said. “I’m planning to remember you.”

Kyoko mentally groaned at his words. Great, another person written in her list of people to avoid.

He held his hand out for her to take, and she twisted her face in annoyance.

“If you ever get bored of the underground, or you find yourself in some deep shit, you can always give my agency a visit.”

She turned away first, pulling her hood up as she walked back toward the maze of streets. 

“I don’t work for the commission’s approval, I work for my neighbors.” 

The silence set in, and the cold rain was beginning to settle into her bones.

“Don’t follow me,” she said.

“I won’t,” he answered.

After a beat, he added, “But if I catch you trying to pull something like that again, I’m gonna have to take you in.”

Kyoko paused just long enough to glance back over her shoulder.

“Then keep out of my alleys,” she said. “And we won’t have to argue about the Nomu’s.”

She vanished into the shadows before he could reply.

Aizawa stood there for a long moment, rain soaking into his scarf, eyes fixed on the empty space she’d left behind.

“…Tch,” he muttered.

She knew he could have easily wrapped her up with that scarf, erased her quirk, and sent her to jail. He had every right to. The law would have welcomed it—another loose end tied, another shadow dragged into the light and catalogued, processed, corrected. He could have stopped her with a flick of his wrist and a tired look in his eyes.

But he didn’t.

The realization followed her across rooftops and down fire escapes, clung to her ribs tighter than the ache from the fight. He had let her disappear. Not because he couldn’t stop her—but because he chose not to.

For a brief, dangerous moment, she’d seen something familiar in Eraserhead’s eyes. Not approval. Not pity. Recognition. The same kind she’d once seen in Stain’s gaze, stripped of its fanaticism—someone who understood what it meant to come from nothing, to claw your way out of the dark without ever fully leaving it behind. Someone who had walked these streets once and survived them by becoming something else.

A hero.

In many ways, she was bitter about his words, his offer.

As she moved through the Underground, she found herself imagining it—an alternate version of her life, fragile and tempting. One where she took his hand instead of pulling away. 

Maybe she’d go down the hero route, do it the legal way. But then again, that was never her style to begin with. 

In one of her fantasies, there might be a time where the underground no longer needs her, and maybe she can just continue to box, and use that as her focal point.

The idea felt like a lie.

Kyoko had learned early that being “saved” usually meant being reshaped. Trimmed down. Sanded smooth until she fit someone else’s vision of what she should be. Heroes couldn’t fix the Underground, and therefore Kyoko couldn’t fix herself.

She wasn’t a fixer-upper. She wasn’t a project, or a redemption story waiting to happen. She was the consequence of what heroes overlooked. What they abandoned. And she refused to become another beast tamed.

If she walked away now—if she followed the path Aizawa represented—then everything she’d seen, everything she’d fought for, would remain exactly as it was. The alleys would still rot. The people would still bleed quietly. The monsters would still slip through the cracks.

Someone had to stay.

The future she was choosing was smaller, darker, and lonelier. It came with no medals, no absolution. Just endless nights, bruised knuckles, and the constant knowledge that one mistake could end her. But it was hers. And more importantly, it meant the Underground wouldn’t be left defenseless.

As she slowed her pace, the rain washing the last of the blood from her hands, Kyoko let the thought settle fully in her chest.

She could have been something else.

But she was this.

And she would rather give up her life than give up the mess she still had to clean.

Kyoko’s sense of right and wrong had never been concrete enough for her to stand on.

It wasn’t that she didn’t understand the appeal of professional boxing or hero work—she did. Both offered escape. Boxing promised legitimacy, money without looking over her shoulder, a future where her strength was celebrated instead of hidden. Heroics offered something even more dangerous: forgiveness. A chance to be declared good by people who had never seen where she came from, who she used to be.

But Kyoko didn’t trust systems that needed fixing in order to function.

The Underground had taught her its rules young and brutally. It didn’t pretend to be kind. It didn’t promise salvation. It showed you exactly what it was and asked only that you learn how to survive inside it. People there didn’t hide behind titles or press conferences; they lived with the consequences of their choices in plain sight. If someone was hurt, you saw the blood. If someone was exploited, you saw the cost. There was no buffer between cause and effect.

Aboveground justice, by comparison, felt abstract. Crimes became statistics. Neighborhoods became “problem areas.” People like her neighbors—shopkeepers, fighters, sex workers, runners—were reduced to background noise in a story about hero success rates. When heroes intervened, they arrived loudly and left quickly, taking credit with them and leaving the cleanup to everyone else.

Kyoko couldn’t stomach that.

Professional boxing wasn’t much better. It was violence polished into entertainment, pain repackaged as spectacle. The crowd loved her ferocity, her refusal to go down, but they didn’t want her. They wanted the idea of her. The tiger in the ring. The novelty. And while she loved the adrenaline, and the steady flow of cash, she now understood that it wasn’t her only hobby now.

Her morality wasn’t about innocence. She knew she wasn’t innocent. She hurt people. She broke bones. Sometimes she left others bleeding in the dark. But she chose her targets carefully. She didn’t punch down. She didn’t protect predators just because they operated under the right paperwork or wore the right mask.

Heroes were bound by laws that didn’t bend fast enough for places like the Underground. Boxing was bound by contracts that demanded she look away from suffering that didn’t sell tickets. Both required her to step back—to let someone else decide what was worth fighting for.

Kyoko refused.

She stayed because the Underground didn’t need symbols. It needed presence. Someone who knew the alleys, the faces, the unspoken rules. Someone who understood that not every crime was dramatic, and not every victim would ever make the news. Her justice was small, immediate, and personal. She protected routes. She interrupted deals. She made it harder for monsters to operate comfortably.

She didn’t believe in being a hero. She believed in being there.

Staying in the Underground meant accepting that she would never be clean, never fully safe, never widely understood. But it also meant she didn’t have to abandon the people who couldn’t leave. The ones who didn’t have the luxury of dreaming about a better district.

Her goals—her story—were never meant to see the light of day.

They weren’t built for headlines or interviews, not for documentaries or redemption arcs. Whatever Kyoko was becoming had grown quietly, in the negative space left behind by heroes who passed overhead without looking down. At first, she told herself she was only continuing what Stain had started. Carrying his lessons forward. Watching his routes. Filling in gaps where his presence once scared people into behaving.

But somewhere along the way, it stopped being about helping him.

It became about the weight he left behind.

The map. His insane ramblings. You will win. A strange prophecy that never felt grand, only heavy. Like a responsibility disguised as encouragement. She hadn’t asked to inherit it. Hadn’t asked to be anyone’s successor. Yet here she was, moving through the Underground like it expected her—like it had already decided she would stay.

And what made it worse was that she knew she was doing this wrong.

Not wrong in the way the law would define it—she’d crossed that line long ago. But wrong in a quieter, more corrosive way. Stain’s war had been clear, brutal, and singular. Heroes were his enemy. Corruption his target. He believed purity came from cutting rot away completely, even if it bled.

Kyoko wasn’t doing that.

She wasn’t hunting heroes. She wasn’t driving them out or leaving bodies behind as warnings. In fact, she avoided them whenever she could. Not out of fear—but because they weren’t the problem standing in front of her most nights.

She was stopping muggings before they escalated. Breaking up deals that involved kids who were too young to understand the cost. Pulling people out of alleys before something irreversible happened. Standing between monsters and civilians who would never be thanked for surviving quietly.

She was doing their job.

And that terrified her.

Because heroes were trained, sanctioned, protected. They had teams, protocols, and safety nets. They could afford to hesitate, to retreat, to call for backup. Kyoko had none of that. She had bruises she ignored, meals she skipped, and a body she treated like collateral.

She wasn’t meant to be the one protecting innocent people.

But someone had to.

The Underground didn’t care about philosophy or legality—it responded to presence. To consistency. To someone showing up night after night and refusing to look away. And slowly, without ceremony, Kyoko had become that someone.

She didn’t like thinking about what that meant for her future. There was no endgame here. No moment where she’d be allowed to stop. Every person she protected tied her tighter to this place, anchored her deeper into streets she’d once dreamed of escaping.

Still, when she saw fear drain from someone’s face—when a situation ended with shaking hands instead of blood on concrete—something in her chest settled.

She told herself it wasn’t righteousness. It wasn’t heroism.

It was necessity.

But deep down, she knew that line was thinning. That she was walking a path neither she nor Stain had fully intended. One where the Underground didn’t just survive under her watch—it depended on her.

And Kyoko didn’t know whether that made her a guardian or just another mistake the world would eventually have to correct.