Archive of Our Own ^beta

Chapter Text

“What did you call us here for, boss?” Chuuya’s voice breaking a silence that had fallen. He and his subordinate, Akutagawa Ryunnoske, were called up to the boss’s office for a mission.

Akutagawa’s gothic makeup was starting to smear a little bit, more towards the back of his face. Having not really been in a high position, or having met the boss face to face, he was a little scared to not mess anything up. He stayed still as a statue.

“Ah, yes, I have an important mission for the both of you.” Mori said, in a calm tone that seemed to make the room a bit less tense.

Mori got up from his chair behind his desk, and picked up two files. He walked over the where Chuuya and Akutagawa were standing, before handing one files to each of them. He walked back to his desk and sat back down.

“Rintarou! Elise yelled over her shoulder. “Just tell them the mission already! Not everyone has time to waste.” She turned and went back to coloring a drawing of mori’s grave and Elise standing proud next to it.

“Ah, alright,” Mori said, a little more annoyed than before. “You two are going on a joint mission with the Detective Agency to investigate a hero school in Musutafu.”

“May I ask why?” Chuuya asked.

“Because, as you know, Yokohama is excluded from the rest of the world, and those heros are trying to get in. I need you two and the Detective Agency to find out those specific plans and make sure the plans don’t happen.” Mori said.

“You are both dismissed,” Mori said just a moment later.

Chuuya and Akutagawa bowed in respect, before walking out of the office. Once out of the area that the office leads to, they both opened the files.

“Why do we keep getting paired with people from the Detective Agency?” Akutagawa asked, annoyance filling his vocal cords.

“Because some of us work together fine, maybe?” Chuuya answered, unsure if his answer would satisfy Akutagawa.

“Tsk,” Akutagawa said, more annoyed.

“Wait, if we are infiltrating a school, do we have to pretend to be teenagers?”

“Probably.”

“Damn.”

“WHAT!?” Dazai yelled, completely confused and angry.

“Yeah, what,” Atsushi said, agreeing with Dazai on a less violent tone, still annoyed.

“I said you’re infiltrating a school with the Port Mafia,” Fukuzawa repeated.

“Why us,” Dazai asked, demanding.

“Because I can trust you two can get the job done right,” Fukuzawa said. “And you two have both interacted with the mafia before, so you’re familiar with them.”

“Fine,” Atsushi agreed, reluctantly. The president wasn’t wrong with the last part.

“Oh come on!” Dazai said, covering his face with his hands in an annoyed way.

“Hurry up and get your things, you two leave in 3 hours.” Fukuzawa added on.

The two grabbed the files and headed out the office door, Atsushi glaring at Dazai, while Dazai looked away.

2 and a half hours later, the four met up in front of the building the Detective Agency was in.

“So it’s all four of us on the same mission, correct?” Dazai asked, towering over everyone else in the group.

“Yes,” Chuuya replied.

“Then let’s catch the next train to Musutafu,” Atsushi spoke up.

“Alright,” the group agreed.

Chapter Text

The train ride was sort of peaceful. It was around night time, so not a lot of people were on the train. And if there were people, they would all be asleep.

“Should we check our IDs and see which class we all got?” Atsushi asked.

“That’s not a bad idea, Atsushi-kun,” Dazai replied.

They all pulled out their IDs to check.

Dazai and Chuuya were in class 1A, while Atsushi and Akutagawa were in class 1B.

“Damn,” Atsushi muttered under his breath. He didn’t like the idea of him and Akutagawa in the same class, saying how much they hated each other.

Dazai peered over to look at Chuuya’s ID.

“Oh look, Chibi, we’re in the same class!” Dazai exclaimed, slight annoyance tinging his voice, barely noticeable.

Chuuya rolled his eyes and turned to look at Akutagawa, who’d been way too quiet lately.

Chuuya also insisted on sitting next to him for the train ride.

“My boy, are you okay?” Chuuya asked in a whisper, concern filling his voice.

“…I’m… fine…” Akutagawa replied, also with a whisper.

Chuuya knew that he was lying, but he didn’t want to push it. He nodded and turned back to the front.

After a bit, the train came to a stop and it was time for the four to get off. Walking off the train and into the station felt… weird. Even in the dark quiet, the people there looked strange. Some had completely different colored skins like rainbow, some had horns and tails, and others look completely normal. Back in Yokohama, everyone looked like normal human beings, so it was hard to tell if they had abilities or not. Here, it would be fairly obvious.

Akutagawa turned and saw a huge building. It was in the shape of a U, from what he could see.

“I think that’s the school,” he said quietly, pointing slightly at the building.

“Let’s go then,” Dazai said, excited.

After a bit of a walk, they made it to the gated entrance of the massive school building. They were met with a rat-looking creature.

“Why, hello,” the creature said, startling the group. “You four must be the new transfer students. Welcome to U.A. Highschool. I’m your new principal, Nezu. Please follow me.”

Nezu started walking off, and the group followed, uncertain about what happened.

After entering the building, they landed in the office. Two new voices were heard, and their teachers were visible.

“Boys, these are your teachers,” Nezu said. “Dazai and Chuuya, your in class 1A, with Aizawa as your teacher.” He pointed at a tired looking man, with black hair, black clothing, and a scarf thing wrapped around his neck.

“Atsushi and Akutagawa, this is your teacher, Vlad King.” He pointed to the other man.

“The school day is about to start, so, Aizawa and Vlad King, you two may head back over to your classrooms. Boys, you guys will stay here in the office until I allow you to go, got it?” Nezu said, basically monologuing.

The teachers exited the room. A silence fell over the five of them.

“So,” Nezu said, breaking the silence. “Tell me a bit about yourselves. Starting with you, Atsushi!”

“Uh, I like cats, I guess,” Atsushi answered.

“Cool, you next, Dazai.”

“I’m half-american!” Dazai admitted excitedly. He never told a lot of people about his past, or nationality, so it was surprising the he said it so openly.

“I guess that explains his skin color,” Atsushi thought. Dazai was darker than the rest of them, or anyone he knew.

“That’s really cool. Next up is Chuuya,” Nezu said.

Chuuya hummed in confusion. He had been spacing out, and it was clear he was tired as fuck.

“What’s something you think I should know about you?” Nezu repeated.

“Oh, uh,” Chuuya muttered. “I’m actually mildly allergic to cats.”

“Wow, really?” Nezu asked.

Chuuya nodded.

“Oh, well last but not least, Akutagawa. Tell us something.”

Akutagawa stayed quiet for what felt like forever, before saying, “I have a younger sister named Gin.”

“Well, now that I know stuff about each of you, you may go. Do you need any help finding you classes?” Nezu asked.

“No, but thanks anyway,” Dazai spoke up for everyone.

The four walked out the door.

Chapter Text

The four walked down the hallway, navigating to their classrooms.

Dazai had memorized the school layout, and was guiding them. Thankfully, their classes were next to each other, so they just needed to find the hallway in the giant school.

Eventually, they found their classrooms.

Dazai knocked on the huge door that said “Class 1A” on it.

“Come in,” the tired voice of their teacher came through.

Dazai motioned with his head for Chuuya to follow him, and Chuuya nodded.

They walked through the doorframe, and was immediately met with about 10-20 pairs of eyes, directly pointed at them.

It made Chuuya really uncomfortable. He was used to people just pretending that he was invisible, and he liked it that way. It was scary being noticed for the first time.

“Introduce yourselves,” Aizawa said, cutting the silence that had fallen.

“I’m Dazai Osamu,” Dazai said excitedly.

“Nakahara Chuuya,” Chuuya said quietly, his voice tinted with discomfort.

“What are your quirks?” a green haired boy asked, way too enthusiastically.

“Nullification!” Dazai exclaimed.

“Gravity manipulation,” Chuuya answered.

“Cool,” the green haired kid said, before writing something down with a pencil in a notebook that looked like it’d been through hell.

“What’s something you would want us to know about you?” a short, brown haired girl asked, raising her hand and everything.

“Uh,” Dazai said quietly, not knowing what to choose for an answer. “My parents are divorced,” he lied, less enthusiastic and loud.

Chuuya glared at Dazai, before answering the girls question. “Uh, I’m fluent in French, if that counts.”

“Okay, cool,” the girl said.

“Alright, enough talking. Your twos desks are over there,” Aizawa said pointing at two empty desks in the back.

The two walked over to the desks and sat down.

With Atsushi and Akutagawa…

Atsushi knocked on the door to class 1B, and to his surprise, a voice answered.

“Come in,” came the voice of their teacher.

Atsushi opened the door and started walking into the room of hushed students, Akutagawa trailing behind him.

They got to the front of the room and introduced themselves.

“I’m Nakajima Atsushi,” Atsushi said, in the most enthusiastic tone his tired ass could manage.

Atsushi nudged at Akutagawa to do the same.

“I’m Akutagawa Ryuunosuke,” he said quietly, though in the silent room everyone could hear him.

They got lead to their desks, and the school day started.

Chapter Text

“So, new kid,” a blonde kid with spiky hair said, yelling across the hall to Dazai.

“Hm?” Dazai hummed in confusion, and turned around to meet eye-to-eye with the kid.

The school day was finished, and everyone in the class was in the dorm rooms.

The blonde kid caught up to Dazai.

He lowered his voice. “I saw you glaring at the other ginger punk. What the hell is that about?”

Dazai smiled, the same smile he used in the mafia when torturing someone. An innocent, pure smile from the outside, but with the intent to kill inside.

“I have no idea what you’re talking about,” Dazai said, giving off a confused tone.

“You know what, never mind. But where is that little extra anyway?” the blonde kid asked, sensing that Dazai’s smile meant something different.

“Probably sleeping, honestly,” Dazai answered.

He turned and the blonde kid was gone.

Dazai walked to the dorm room he shared with Chuuya and entered, closing the door behind him.

Chuuya was lying on the floor, just staring at the ceiling.

“Chibi, what the fuck are you doing?” Dazai asked, confused.

“I don’t know,” Chuuya replied, sitting up. “But I did hear your conversation with that other kid.”

Dazai’s cheerful face and attitude fell completely.

“We have to do something about that kid,” Dazai said, joining Chuuya on the floor.

“Yeah, but we can’t make it obvious.”

“Then what do we do?”

“I don’t know, you’re the smart one here.”

The two brainstormed ideas on how to get rid of the kid, talking in hushed voices and code, in case anyone heard them. At last, they finally came up with something.

There was a knock on the dorm room door, and the two jumped.

Dazai walked over and opened it, not knowing what to expect. See, the thing here is, you never know what to expect, since everything is so different than in Yokohama.

“Hey, uh, I was wondering if you two would like to join the rest of us out in the main room,” another blonde kid said, but his hair was more yellow, and he had a energetic personality, rather than the explosive one the other one had.

“Uh, sure,” Dazai replied. He looked over at Chuuya, who seemed normal at first glance. Dazai knew that something was wrong, but he wouldn’t say it. Not now, anyway.

The three walked over to where the others were. Along the way, the blonde kid said that his name was Kaminari Denki.

When they got there, Dazai and Chuuya were met with a bunch of people, and they tried their best to hide all of their discomfort.

Everything went fine with everyone there. But after a while people started going to bed, and it was down to four people. Dazai, Chuuya, Denki, and the green haired kid whose name is Midoriya Izuku.

“Just us four, eh?” Denki said, stating the obvious.

“I guess,” Izuku mumbled, no longer having a lot of energy. No one did, so I guess it doesn’t matter.

“So, uh, what do we do now?” Denki asked.

“I don’t know, but do you guys wanna be friends?” Dazai asked out of nowhere.

“I mean, sure,” Izuku replied fast.

“Okay,” Denki said.

“It’s weird how fast Izuku responded, like he hasn’t had any friends.” Chuuya thought. “Eh, who am I to judge.”

After about ten minutes of just talking, the four went to their respective dorm rooms to sleep. After all, they still have school in the morning.

Once Dazai and Chuuya got into their dorm room, Dazai closed the door and looked at Chuuya. Chuuya had his arms crossed around his chest, like there was something he wanted to say, but also didn’t want to.

“So, you going to tell me why you look like that?” Dazai asked quietly, but stern. All the energy had left, leaving his old personality.

“No,” Chuuya responded, his voice barely above a whisper.

“Don’t lie to me,” Dazai said, whispering in the same tone he used when people were keeping secrets that they shouldn’t.

“I’m not telling the likes of you.”

“I’m not trying to be mean, but it’s clear you are uncomfortable with that Denki kid.”

“It’s not that. He just reminds me of someone.”

“…”

“And no, I’m not telling you who it is.”

“Fine, be that way,” Dazai said, before walking and opening the door to the little balconies each dorm was given, and closing it behind him.

“Fuckass idiot,” Chuuya mumbled, before walking towards a pack of cigarettes and a lighter, he grabbed the two items, before walking to join Dazai.

Chapter Text

I am officially discontinuing this series. I have run out of ideas and it’s kinda overwhelming.

I am making a replacement series, with 17 soukoku in a bsd x mha fanfic like this one.

I hope you understand, and thank you for the support on this series.

Have a good day.