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What In The Actual Hell!? (Literally)

Summary:

Just what would happen if the Misfit class were to come in contact with the Karasuno volleyball team. After a small slip up with a new student in the Misfit class, guess what happened! They’ve arrived in Japan! Right in front of the Karasuno highschool boys volleyball team’s gym!

//

Welcome to Demon School Iruma-Kun / Haikyuu crossover muahahah

Notes:

I wrote this a while ago actually, finished the first chapter today. Enjoy. Sorry if it’s rushed.

Chapter 1: Oh gosh, we’re here.

Chapter Text

It was a normal day at practice, everyone was running laps. Not knowing that something…odd was about to happen. At break time, an orange haired boy walked outside, to see a multicolored portal.

“What the—?” The boy mumbled. Suddenly, a whole group of…people(?) appeared, all of them—but one— passed out on the ground.

“Azz! Clara! Everyone!?” The one who was awake called out, and he then turned to the orange haired boy, locking eyes with him.

The volleyball player stood, dumbfounded. “K-KAGEYAMA-KUN! GET YOUR BUTT OVER HERE!” He managed to yell.

———————

10 minutes earlier, in the Netherworld.

A new demon had entered the Misfit Class. The demon was tall, purple hair, bright cyan eyes, and a cheeky smile slapped on his face.

“Hi guyss! How are you all!!” The demon said.

The class didn’t respond.

“What’s with the silence~~”

The class still stayed silent, even Iruma was silent, slightly uncomfortable even.

“Ack, you all are bo-ring!”

The demon suddenly opened a portal, and it sucked everyone but him in.

And that’s how the class ended up outside the gym.

———————-

A black haired boy by the name of “Kageyama” suddenly walked outside.

“OI, HINATA, WHAT DO YOU WA- …WHO THE HELL ARE THESE!?!?” Kageyama yelled.

“Kageyama! Don’t curse!”

“HELL IS NOT A CURSE WORD, YOU DUMBASS!” Kageyama then put his hand on Hinata’s head and was pushing it down slightly.

“Ack! Kageyama-kun, please let me go that hurts!” Hinata whined.

The one that was awake out of his group was silent, not knowing what to do.

“YOU! BLUE HAIRED KID! WHAT’S YOUR NAME!” Kageyama said to the kid, ignoring what Hinata was saying.

The kid jumped slightly, “My- My name is Iruma! U-uhm. What’s…yours…?”

“Ooh! Nice hair! My name is Shoyou Hinata! And this dummy over here is Tobio Kageyama!” Hinata said cheerfully.

“OI! I CAN ANSWER FOR MYSELF!” Kageyama then sighed, “What—where. Who even are you guys? And why do you have horns… WAIT WHY IS THERE A BIRD!?”

“Ah, uhm…” Iruma hesitated.

Kageyama let go of Hinata’s head and began to walk closer to Iruma, his demeanor menacing.

Suddenly, flames came at him, and Kageyama barely doged in time.

“WHAT THE HELL-!?” Kageyama yelped as a pink haired boy rose next to Iruma.

“DO NOT LAY YOUR HANDS ON IRUMA-SAMA!”

“Azz, it’s— I’m alright.” Iruma reassured his friend.

Asmodeous sighed, “We are the Misfit class at Bablys. Where the hell are you from!”

“Bablys…? Hinata, is that even a real place…?” Kageyama said confused.

“I don’t know, I’m bad at geography…” Hinata replied.

“Wait a minute, WHY DO SOME PEOPLE IN YOUR GROUP HAVE HORNS AND A TAIL!?” Hinata suddenly yelped, slightly clinging onto Kageyama out of slight fear.”

Asmodeous’ reaction was not what Hinata expected. “Don’t most demons have horns and tails? What’s so odd about that.”

Iruma froze. “AZZ! WE’RE IN THE HUMAN WORLD!” He suddenly yelled, realizing where they were.

“WAIT WHAT!? THAT IMBECILE DEMON TELEPORTED US HERE OUT OF ALL PLACES!?” Asmodeous exclaimed.

Kageyama and Hinata stood, dumbfounded.

“A-am I dreaming right now, Kageyama-kun…?”

Kageyama then flicked Hinata’s forehead.

“O-OW!?”

“Looks like you’re not in a dream..” Kageyama mumbled.

Then, another person woke up.

“Irumachi! Azz-Azz! Where is that meanie guy!”

She had bright green hair, a tail, and horns.

“EHH? NEW FRIENDS! AZZ-AZZ! IRUMACHI! ARE THESE NEW MISFITS ASWELL! They better not be as mean as that meanie! I wanted to make him go BOOM, KABOOM!”

“I-uhm..” Hinata mumbled.

Then a blond boy appeared from the door, “Hey, lovebirds, practice is resum- …What…?”

The green haired girl bobbed her head, then ran towards the blond boy.

“HI! MY NAME IS CLARA! WHAT’S YOURS? OOOHH! YOUR GLASSES ARE SHINYY!” Clara yelled, bombarding him with questions.

Tsukishima backed up a bit, a slight look of disgust on his face.

Clara frowned, “You’re a meanie!” She said as she walked back to Iruma and Asmodeous.

“You freak, why do you have horns?” The blond boy exclaimed.

Clara stood still, her face unreadable. She then grabbed Iruma’s arm, hugging it as she buried her face into his shoulder.

“Ah.. the- the human world..” Iruma said, his voice in slight disbelief and nostalgia.

Another blond man walked out.

“Hey! What’s with all the waste of time! Quit being lazy and get your asses inside!” The coach said before staring at the group.

“Is this some sort of freak show? Whatever, it doesn’t matter. Quit distracting my kids and come inside.”

“C-coach. They aren’t human.” Hinata whispered.

“The hell do ya’ mean kid?” The coach replied.

Asmodeous suddenly held up a flame, “IF YOU COME TO HURT US, I’LL BURN YOU INTO SMITEREINS!”

“WOAH! HOW THE HELL DO YOU HAVE FLAMES!?” The coach yelled before returning back to normal. “TO BE FRANK, I DON’T CARE WHAT YOU ARE! SO JUST GET YOUR ASSES INSIDE MY GYM, OTHERWISE I’LL DRAG YA’!”

The trio paused, then began to drag everyone into the gym, besides Sabnock, as he was too big.

Asmodeous kicked his arm until he awoke, “HOW DARE THOU KICK ME!” Sabnock yelled once he woke up.

“Get into the building.”

Sabnock quickly turned his head around, before eventually doing so since everyone else was.

——————

“Uhm…WHY ARE THERE LIKE 13 RANDOM PEOPLE(??) IN HERE!? AND WHY DO THEY LOOK SO… DIFFERENT!?” A short boy yelled.

“Why does thou have hair like mine!” Sabnock mumbled aloud.

“Stop with the old speaking, it’s kind of weird.” A bald boy said.

“YO, WHERE THE HECK ARE WE!?” A blond boy with headphones jolted up.

“Lied-kun!” Iruma spoke as he ran over to his friend. “We’re in the human world!”

“WHAT!?” Lied yelled.

Slowly but surely, everyone began to wake up, confused as ever. And as for the volleyball team, they just resumed practice as per usual.

Once everyone awoke, the coach—along with a small man with glasses walked over.

“Listen up, we don’t know what you are, where you come from, or how to get you all back. Can you help us clarify some of those things?”

“WAIT A MINUTE, sorry to interrupt you, BUT DO ANY OF YOU FEEL LIKE, A CRAZY URGE TO EAT THESE GUYS…?” Iruma yelled out to his class, light fear in his voice.

“W-W-W-WHAT!? E-EAT!?” The man with glasses yelled.

“Calm down Takeda-sensei,” the coach reassured his colleague.

Everyone of the Misfit Class nodded no.

“These pesky humans don’t seem like a good meal! Either way, I don’t believe that eating humans is right of the future demon king!” Sabnock declared.

“It is nowhere near right to eat humans! Anyone who does so will be hearing from me!” Asmodeous followed.

“Yeah! Anyone who eats humans are meanies! AND THEY CAN ALL GO KABOOM!” Clara exclaimed.

“Humans are so sweet and innocent! Only a monster would eat them.” Another girl chimed in.

Iruma stood still, Asmodeous and Clara by his side.

“So it- it would be okay if I’m human…?” Iruma thought to himself, he had zoned out.

Asmodeous put his hand on Iruma’s head, then leaned in to whisper something. “Iruma-sama, are you alright?”

Iruma jumped a bit, snapping out of it. “Y-yup! Perfectly fine!”

Asmodeous nodded, not really believing his dear soulmate, but also not wanting to push it more.

“Uhm. Are you all going to answer my questions?” The coach complained.

A tall girl wearing revealing clothes spoke up, “Uhm! We are demons, from the Netherworld…? We come from the highschool Babyls, as too get back, none of us know. A new demon was introduced to our class, except, he was… off.”

“Yeah! He was really weird, and when we didn’t respond to him, HE TELEPORTED US HERE!” Lied whined.

The coach paused for a moment, “I don’t think I’d fully understand without seeing it, so I’ll just not ask anymore questions—Shimizu, could you please go get the tall girl some different clothing…”

Kiyoko nodded, and headed into the backroom.

“Hm? Why do I need different clothes?” The demon said sadly.

“With all due respect, here, we don’t wear clothes that only cover what NEEDS to be covered. And to be honest, I could care less. But someone here may try to harm you. And considering you are currently in my supervision, I wouldn’t want you to get hurt.” Ukai explained.

The demon nodded slowly, however, Leid, had something to say.

“Who and why would people try to hurt Nee-san? And in what way…?” Lied spoke.

The coach sighed, “I’m not gonna go full into depth, but basically, some people might use that one’s clothes to her advantage.” He said while pointing to the girl.

Kiyoko reappeared and walked over to the demon girl, “Here, please change into this.”

The demon wore an intrigued expression, “You are so pretty!” “Nee-san” exclaimed.

Kiyoko blushed slightly—out of embarrassment. “T-thank you, you are very pretty aswell.” Kiyoko said as she guided the demon’s way to the changing room.

“Well, uhm. Do you guys have a place to stay?” The coach asked the class.

“Agares! You could make one!” A boy with light blue hair covering his whole body cheered.

His friend rolled his eyes under his sleeping mask, “Sure,sure…”

“MANUAL LABOUR!?” Takeda yelled, slightly frightened.

All the demons gave him a deadpanned look.

“His ability is that he can manipulate the ground into whatever he wants! And, Gaap-kun, you said that Agares-kun made a house for the two of you during the Harvest festival, right?” A girl with glasses said.

Gaap nodded, “Yup!”

Both the coaches looked confused, but they just assumed living arrangements were alright.

“You all just settle down for a bit, we’ll have another conversation once these guy’s practice is over.” Ukai said.

And all the demons nodded, showing that they agreed.

——————-

//End of practice

The coach gathered everyone around, both the team and the misfit’s. And he…stayed silent!?

Someone—Iruma— broke the silence.

“…Wait a minute—Where’s Purson-kun…? He was with us earlier…” The blue-haired boy said worried.

All the misfits whipped their heads around, looking for their friend.

Purson then reappeared, behind Iruma.

“I-I got nervous…” Purson mumbled.

“WOAH! DID THAT GUY JUST APPEAR OUT OF NOWHERE!?” A short boy yelled.

Purson almost became invisible again, before Iruma told him it was okay.

Ukai took a breath in, “How about you all introduce yourselves, and, demons. Since you said you don’t know how to get back, I’ll try my best to make you all not get caught.”

Iruma nodded, “Thank you very much, sir. That means a lot. I promise we’ll do no harm.” Iruma looked a Jazz with a scary smile. “And Jazz-kun! That means no stealing from others!”

Jazz laughed akwardly at this.

“And, Azz-kun! No pulling up flames out of nowhere when it seems I’m in danger.” Iruma lectured as Asmodeous looked slightly disappointed.

“Anyways, My name is Iruma, Iruma Suzuki! Rank 5.5- Nevermind, I forgot you guys don’t have ranks here…” Iruma said with a bright smile before he slowly got more and more akward.

Asmodeous went next, “My name is Asmodeous Alice, and if any of you humans present any harm to Iruma and Stupid Clara I will—“

“OKAY! Azz-kun! Please don’t threaten the humans!” Iruma interrupted.

Clara jumped up, “HI! MY NAME IS CLARA VALAC!” She said cheerfully.

“You look so fun!” A blond girl said with light excitement in her eyes.

Clara gasped lightly, then her face immediately lit up. “YEA!” She then pulled out a pool floaty out of her pocket and sat on it.

“Where the hell did you get a pool floaty from—“ Tsukishima asked, genuinely confused.

“My name is Crocell Kerori.” The girl said shyly.

“The name’s Andro M. Jazz!” Jazz said boldly

“My name is Caim Kamui.” The bird said with clear evil intent.

After all the rest of the Misfits were done, the volleyball players went.

And after everyone was done introducing themselves, a scrawny man with glasses offered a proposal.

“Wh-why don’t we have them try out volleyball…?” He said nervously.

Ukai slapped his back, “Great idea, Takeda-sensei! How do you lot feel about that.”

All the misfits besides Kamui agreed. “I’m too small for volleyball,” his objection was.

“Coach, shall we try out their spiking ability for today? I’m sure Kageyama wouldn’t mind helping!”

Kageyama looked over at his silver-haired senpai, his eye slightly twitching.

Takeda nodded, “That sounds great! Who would like to go fir-“

Takeda was cut of by Sabnock.

“I SHALL FIGHT AGAINST MY RIVAL! IRUMA-“ He yelled.

“Oh no…” Iruma mumbled.

——————

It was going to go something like this, everyone would group up into pairs, and then, when it was their pair’s turn—Sugawara and Kageyama would set for them.

It was first Sabnock and Iruma’s turn.

Just as they were about to go—Sabnock interrupted. “How does thou spike a ball!?”

Iruma jumped up, “I’ll show you!”

Sabnock nodded, while Sugawara told Iruma that he would set the ball.

Iruma walked over to Sugawara. “Here!” Koushi yelled as he set the ball.

Iruma ran up, jumped, put his hand in a swinging motion— and missed the ball completely(because he tried to dodge it).

“…Dang it.” Iruma mumbled.

Sugawara laughed akwardly, “It’s alright! It’s great for your first time… Does the demon world have volleyball?”

All the demons shook their heads,

“So! That’s alright-“ Sugawara was interrupted half way.

“How did that one know how to spike then?” Tsukishima scoffed.

Iruma froze up, and Asmodeous explained.

“Iruma-sama is just so knowledgeable. The most knowledgeable demon of them all! Ofcourse he would know how to spike a ball!” He said while clearly praising his soulmate.

Tsukishima narrowed his eyes, “Right…” he said.

“WELL! I SHALL BEAT MY RIVAL IN THIS THING YOU CALL SPIKING!” Sabnock yelled enthusiastically.

He didn’t have to jump that high, and the ball popped upon impact.

“…Well uhm… that’s… that’s a separate problem.” A basic looking, brown-haired boy said.

“Is thou supposed to break the ball?” Sabnock said, confused.

Sugawara shook his head, “Nope…”

Sabnock scoffed, “HOW FOOLISH!” He yelled.

*After everyone tries out volleyball bc I can’t be fucked to write all that.*

A blonde man sighed, “Okay, so it seems that As- Asmo- however you pronounce that— the pink haired guy. Jazz, Clara, and Eliza are best suited for Volleyball.”

Clara and Eliza began to jump with eachother, fawning over their skill.

“Sadly, you two girls can’t play on a boy’s team, and the girl’s team isn’t an option, considering you guys are demons…”

The two then frowned.

“I won’t play unless Iruma-sama plays aswell!” A pink haired boy exclaimed.

“Huh, that guy like that blue haired guy quite a lot, right! Tsuki?” A greed-haired boy chimed to Tsukishima.

“I guess, Yamaguchi.”

“That’s fine, you don’t have to play.”

Asmodeous nodded, then went to create a flame barrier containing him, Iruma, and Clara, separating the trio from everyone else.

“… I’m not gonna question that.” Sugawara quickly mumbled.

“Well! Uhm… You guys can now…socialize?” One of the coaches said.

And so, the two groups of kids talked! Many conversations in the class.

“Dude! Some of those girls are sooo cute!” Nishinoya cheered to Lied and Tanaka.

“Why ofcourse! BUT THE PRETTIEST OF THEM ALL IS NEE-SAN!” Lied exclaimed in return.

“PERSONALLY! I like my girls with long tails, makes em’ cuter~” Lied huffed under his breath as he blushed slightly.

“Oh right, forgot y’all are demons with tails….” Nishinoya deadpanned.

~~~~

For the most part the conversations were going well, they maybe lasted 10 minutes before everyone remembered they had a home to get to.

As for the Misfit class, they found an isolated area that was relatively close to the school to build a home.

~~~~~~~~~~

“Urget! Urget! Bablys’ Misfit class completely missing! Bably’s Misfit class completely missing!”

———————