this was honestly supposed to be some sort of serious shit where Nagisa actually helps 3-5 get their shit together but then my mind slipped into the gutter and this monstrosity was born.

sort of CONTAINS SPOILERS FROM CHAPTER 180 I guess?

7 years has passed since the our graduation from the assassination classroom. He had a massive growth spurt, hitting somewhere around six feet or taller. His scrawny limbs have developed muscles from the training regimen He's developed back in middle school. Last but not least, Nagisa would become a handsome, inspirational mentor loved by charming students.

At least, that's how everything was planned in his head...

But of course fate wouldn't allow it.

Nope. None of that happened within those seven years. he still stayed close to the ground. Not growing a lick since his graduation from middle school, middle school. God knows why his limbs were still scrawny as fuck and well, an inspirational mentor? Nagisa didn't know anything about that.

"Good morning everyone. I am Nagisa Shiota a collegiate intern who will be teaching this class starting from today" He said as he walked inside the dingy, piss poor excuse of a classroom.

The smell of pungent musk and heavy testosterone hung in the air. The room was dim he noticed, obviously because two of the four flourescent lights were broken. various doodles of reproductive organs painted the desks, walls, hell there were even some on the ceiling! Trash was all over the classroom, unidentified liquids pooling in the corners of the room.

Jesus this room is a pig sty.

He was met by silence and incredulous stares from his future students. He smiled. Just as he was about to start calling their attendance, a loud guffaw broke from the silence. "Are you seriously our new teacher?" the boy asked his voice mocking. Apparently his tone triggered something, and soon the whole class was laughing.

"Some college intern" one scoffed

"Get the fuck outta here I know middleschoolers taller than ya" another called

"Yo, what if this shrimp is actually a girl, I say we pull those pants and have a little check"

Ah there it is, comment on his androgyny. It seems that people still mistake him for a girl despite him cutting his hair.

Paradise High was very different from Kunugigaoka, Nagisa observed. And it was just his luck to be assigned to this dysfunctional hellhole.

In Kunugigaoka, students from the end class were harassed, derogated and neglected. Their classroom was even isolated in a mountain for Christ's sake. All the while, students from the main campus especially the A class were always considered, praised- hell, they were even worshipped!

Simultaneously, Paradise existed as the complete opposite of his alma mater. Not in the sense of them treating their students equally. No, Paradise High was literally the opposite of Kunugigaoka Academy.

Here, their end class were respected. Respected out of fear, but respected nonetheless. While the poor souls who actually take their education seriously get bullied.

Seriously, when did things start to go wrong?

He was snapped out of his musings when the bell rang

"Lookie here dumbass, you do realize what school this is right?" one of his students in a Mohawk stepped closer his face wore an ugly sneer. The boy was trying to intimidate him, but it wasn't working, really. "if you don't want to end up in the hospital in a full body cast I suggest you leave and just call study hall or something"

"The bell just rang I advise you go back to your seats" He said shakily. Not because he was scared, no it was out of exasperation.

A blonde laughed a friend of Mohawk's he supposed. "Pwease go back to your seats" he laughed "Ha! look at you you're shaking like a leaf!"

"Please go back to your seats" Nagisa's tone was much clearer now "So I can start-" He was cut off midsentence when his tie was yanked harshly. This time it was a redhead, his golden eyes which held a manic look stared at him. Nagisa recognized that look. Bloodlust.

The teacher also noticed that that students who previously harassed him backed off, and the class when deathly quiet. 'This boy must be the alpha of this unruly pack' he thought

"Try ordering us one more time and I'll fucking kill you"

I'll fucking kill you

Kill

Kill

Kill

How many times has Nagisa heard that word? Which of the people he heard it from actually meant it? He looked deep into the eyes of his redheaded student and read the atmosphere around them. It wasn't dark, it seems the redhead just said it to intimidate him.

He was affronted. Kill? Oh please, this brat is a million years too early to be doing that. As a student of the Assassination Classroom the word kill was simply a magical chant that grants us courage and confidence.

A loud clap resonated throughout the deathly silent classroom.

/

Karma didn't know what happened. It all happened all too quickly, his undershirt was properly tucked in his pants, and his blazer was buttoned up properly.

But more importantly his teacher was behind him with his finger pressing dangerously against the pulse point in his neck. He could feel the unadulterated bloodlust radiating off his holder. he dared a glance over his shoulder and saw the bluenette's eyes which held the same look he saw everyday in the mirror.

His classmates stood aghast by the rapid turn of events. Their faces were painted white, their jaws on the floor. Judging by their looks, Karma believed that they sensed the feeling of danger too.

Karma was stunned. Never in his life has anyone ever outplayed him. Not even the toughest most burly person among his peers managed to corner him like this. His heart was hammering in his chest, threatening to break free.

Well mark him down as scared and horny.

He was turned around so he was facing his teacher who he saw was a lot shorter than him. And wow, holy shit he's so cute. A sweet smile was given to him by the short college student, "Good luck with that, you have until graduation."

Nagisa, if Karma remembered their name correctly, faced the rest of his students "Same goes for all of you" he laughed and the redhead was pretty sure that was the sound of heaven's gates opening. Their teacher bent down to pick up his fallen notebook unaware of the hungry eyes that followed his movements.

"Now please be seated, so I may start class" The class scurried to their seats, eager to start the lesson. A complete 180 from their earlier reactions.

Just like that the college intern became the subject of class 3-5's inner conflict were they gay, or did they just find the hot as fuck twink Nagisa Shiota the cutest little thing who apparently is also a huge bad ass motherfucker?

Not to mention the object of Karma Akabane's fantasies.

Ok this is a really weird AU to appease my thirst for these kinds of fics... btw Karma is 17 and Nagisa is 21 so its not pedophilia I just have a thing for studenttoppingtheteacher!AUs.

I actually got the idea from that one akakuro fic in ao3, but I forgot the title all I know is it was from the author whose pen name is Arachnophobia I think...

I apologize for the grammatical errors and the probable misuse of words. i tried