1 - 20 of 457 Works in Omega Kirishima Eijirou
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The Game of Life by imposterssyndromee
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
03 Jan 2026
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Omega Kirishima Eijiro wants only one thing for his twenty-eighth birthday: for his boyfriend to keep his promise to start a family. When he’s faced with the harsh reality that his dream of having pups is further off than he expected, his friends are there to pick up the pieces, including the alpha that got away, Bakugo Katsuki.
While Eijiro wrestles with his resurfacing feelings for his former best friend, he decides he’s done waiting around for the stars to align. He’s ready to make his own destiny, even if it’s a little… out of order. -
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Kirishima definitely didn’t look weak, covered from head to toe with thick ropes of muscle. Be that as it may, he was still an omega, which put him at a huge disadvantage. Still, Eijirou doesn’t give up, and he works twice as hard to pick up the slack. What happens when he meets an alpha who’s main goal seems to be breaking his resolve?
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The Accidental Fiancé by DazedSoo
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
01 Jan 2026
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Kirishima finds himself third-wheeling on a date. But things take an unexpected turn when he meets Todoroki, a handsome alpha, who's stuck in the same boat.
A quick connection sparks between them, and before he knows it, Todoroki is asking him to be his fiancé?!
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Who wants to live forever? by Bidoof_Fuh_You
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
30 Dec 2025
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In a world filled with Villains, hero’s, omegas, betas, alphas and so much more no one can expect a happy and calm life. Who knew that’s all the more feared villain in Japan wanted…but is that what he’ll get?
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soft, mellow by Creampuffie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Dec 2025
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“No. You can’t— stop moving,” The omega demands, scent darkening. It curls around the room— spicy, heavy— cardamom behind the tartness.
His eyes are blown wide, pupils dark and unseeing.
Then, he sweetens his tone, puppy-dog eyes in full force. “‘Zuku, stay please?” His legs inch open “Lay with me?” Midoriya splutters, he hadn’t expected Eijirou to beg him to stay.
or
Kirshima goes into pre-heat and Midoriya wants that cookie so fucking bad.
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Into the Arms of a (Cute)Stranger by Askora
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
11 Dec 2025
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Bakugo got into a fight. A lover’s quarrel if you will.
Said quarrel left him 2 against 1, and he knew that what he’d done during the argument was definitely way too far over the line. So, he made his way to the bar to drown with himself and his loud, rude, and totally-in-the-wrong self.
The alcohol may have clouded his judgement, but he’s pretty sure he’s found the cutest stranger in the bar.
Said stranger is Midoriya, who quickly becomes aware of Bakugo’s two omega boyfriends that are waiting at home for him. There’s another problem that arises, too.
Bakugo’s heat is quickly approaching.
Series
- Part 6 of Oneshots/Short Stories
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Promitta by Akitombo
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
01 Dec 2025
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"Kirishima loved being a shifter. He truly had the best of both worlds. He could be a normal human, with added tail, wings and horns, or he could be the size of a building and fly freely with Bakugou on his back.
But there were still times when it was easy to forget that, specifically when it came to Omegaian shifter traditions. Traditions that went back to when they lived without human interaction, back when laws of ownership and property could include the person an Alpha shared their bed with. Times like that bore the Promitta tradition.
If he was lucky: Bakugou would win this tournament with no injury, they would fly home, and Kirishima would never have to listen to any shifter doubt his choice of mate ever again.
Worst case, someone rips Bakugou’s throat out, and he has to kill one of his own kind."
--Bakugou battles for a traditional Draconic Blessing from his Dragon's parents - for the right to call Kirishima his mate.--
Written for Hematic: a KrBk blood themed zine (which I also modded and formatted) - which is available for free from our social accounts.
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Love Me Harder by Yzkchocot
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
28 Nov 2025
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Quizá nunca lo amo, quizá solo fue un juego o alguna forma de asegurarse su futuro.
O quizá nunca entendió bien lo que significaba para él.
No lo sabía.
Solo sabia dos cosas.
Amaba profundamente al hombre que le rompió el corazón
Y su pequeña era su móvil para vivir.
¿Que mas podía pedir?
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He is My Past but You are My Present and Future by lilhinata_02
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
22 Nov 2025
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Izuku thought he was never going to find the love he had with Bakugou when they were kids. When he returns to Japan after a few years with his father and finds himself in 1-A with Bakugou, he loses all hope in finding love until he meets Iida. He and Iida weren't in good conversation the day Izuku fell into his heat and Aizawa knew this but forced Iida to go check on him. How can Iida face him after he helps him through his heat? How can he react when he finds out that Bakugou wasn't kind to Izuku as a kid? How will he even tell everyone he's not straight?
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Living with Butterflies by Taywa
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
10 Nov 2025
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Sometimes a single mistake can cause a chain of events that no one could predict. One mistake as a pup changed everything for Katsuki Bakugo; resulting in him missing out on going to UA, meeting his friends in 1-A, and finding love in a ray of sunshine.
Now as a Pro-Hero he is in charge of a raid on an Alpha fighting ring, but the world he knows going into the raid is not the world he walks back into after. Everything is wrong now, opposite to the life he has known and grown accustomed to.
OR
Katsuki gets dragged into an alternate universe and nothing is as it should be.
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He knows he wants it by Whitewine_Fynewine8
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
08 Nov 2025
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Eijirou is pregnant and Denki is the perfect little helper.
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Locked In by Riyukitsa
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
02 Nov 2025
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Kirishima is an omega. And he’s done a pretty damn good job of hiding it. Ya know, except when he gets stuck in unbreakable to avoid his dynamics.
Aizawa is over it, though, and demands Kirishima start handling himself like an adult.Read this with an empty head. I have no excuses.
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Our Song by Riyukitsa
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
02 Nov 2025
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Kirishima is an omega working in a bar when he meets Midoriya, a ridiculously bashful and sensitive alpha. But just as romance seems to blossom, fate intervenes. The two are pulled apart until their paths cross again and again. Can they get it right before Kirishima loses hope?
*Written from me to me as a personal challenge when I was playing “Our Song” by The Spill Canvas on repeat. The story is so very loosely based on the song that maybe you’ll see it if you squint hard enough.
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You can't compete against nature by Anonymous for imnotpoppunk
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
02 Nov 2025
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I had always thought that stories about Alphas and Omegas losing their minds over each other were just stories, a way for society to exaggerate and create fear. However, when Teacher Izuku encountered his student Katsuki experiencing his first heat, he learned that those stories weren't lies...
Kinktober 2025
Day 14: Omegaverse + Possessive sex -
Between Us, Always by Qugana for rise_fall_rage_and_repeat
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
26 Oct 2025
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Strawberry orange syrup by iceandfire13
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
24 Oct 2025
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“I tumble dried it before I came, figured it’d feel good. How long do you have left?” Eijirou asked. He grabbed Bakugou’s book and put it on the desk, then he tried to focus on arranging some water bottles in a neat row.
“Hm? I’m in heat right now.”
That made Eijirou freeze. “What? Doesn’t it hurt?”
“Oh, yeah.” Bakugou shrugged. “Really badly.”
or: Omega friends sometimes help each other stay hydrated and safe by supervising each other during heats. When he's making Katsuki come a third time, Eijirou starts to suspect this isn't exactly what's happening here.
Series
- Part 16 of krbk
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daddy's favorite indulgence by mistylion01
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Oct 2025
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Bakugou likes seeing his baby dripping in his money, a walking proof that nothing is unattainable when you’ve got an alpha like him. His omega deserves the best in the world, of course.
He takes pleasure in picking out outfits for his sugar baby, and Kirishima loves wearing them—especially when they come with promises of long, heated nights tangled up in silk sheets and the alpha’s possessive growls against his skin. But tonight? Tonight is different.
Kirishima is in heat. And Bakugou isn’t home.
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A Heavenly Recipe by Creampuffie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
14 Oct 2025
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“Fucking hell, Ei, are your pants on fucking fire or-“ he trails off, finally giving Eijirou a proper once over. Fuck okay. There’s a line of sweat forming at his hairline, baby hairs sticking to his forehead, his cheeks ruddy from the cold- lips bitten and flushed; a cloudy look in his eyes- like- like he isn’t fully there. He blinks at Katsuki twice, eyes searching his face.
Omega.
Protect.
His nose flares; forest, campfire, marshmallow- sweet, heady, almost cloying coating all his senses like a slow pour of honey over oats.
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Misty Rain and Caramello by pinkMilady19
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
09 Oct 2025
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Finally, Izuku set down his chopsticks. He'd barely eaten half his meal, but he couldn't stand this anymore. They needed to address the elephant in the room—the fact that their biology thought they were compatible, even if everything else screamed disaster.
"We need to talk about this," Izuku said, his voice low and controlled.
"No shit." Katsuki leaned back in his chair, arms crossing over his chest. Classic defensive posture. "The matching system is clearly broken."
"Clearly." Izuku took a breath, steeling himself for what he was about to propose. "But we both need our licenses renewed. And according to the Commission, we need to be mated to qualify."
"I'm aware, nerd."
"So, I have a proposal." Izuku met the Alpha's eyes directly, refusing to back down. "A contract relationship."
Katsuki's expression didn't change, but his scent sharpened with interest. "Go on."OR: Katsuki and Izuku are nearing 30's and as Pro Heroes, unmated alphas and omegas are seen as liability. They need to be mated or their licensed unrenewed. Izuku got a proposal and Katsuki dive into it. Fake Relationship gone wrong and all the sexual tensions behind.
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~xoxo| A Perfect Omega |oxox~ by ForbiddenRapture
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Sep 2025
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Perfect omegas were not tall and would not be standing at 178cm while still mid growth spurt. Perfect omegas definitely were not meant to build up blocky muscles, and weigh over 80 kilos. Perfect omegas weren't supposed to have calloused hands, rough skin and scars. A perfect omega wasn't meant to be loud and opinionated. A perfect omega was not supposed to challenge the authority of a beta, let alone any Alpha.
A perfect omega was meant to be small and cute, maybe elegant and svelte if they were a little tall, the perfect size to be held and swung around. A perfect omega was supposed to be quiet, timid, reserved and to always do as they are told.
The perfect omega did not have a strong and overpowering earthy musk that smelled of forest after rain, laced with the sharp tang of minerals. A perfect omega had a soft scent, usually flowery, sugary, fruity, even having hints of chocolate or honey.
An ideal omega most certainly did not have a physical or abrasive quirk like hardening.
A perfect omega was not one Kirishima Eijirou.
[Cross-posted from my Twitter @4biddenrapture]