Y/N stood outside the door to 1-A, her hand hovering in front of the door. She flashbacked to her first day at UA 8 years ago, a timid young hero-hopeful with the first day jitters standing outside the door to 1-B.Resolutely, she pushed the door open. The class turned to the door, curious about the new addition. She quietly walked to the front of the room. Aizawa was sitting at the desk, finally noticing her presence.
"Class, as discussed Miss L/N will now be your joint homeroom teacher alongside myself. You can go to her with anything petty or unimportant." He mocked her. He pulled out the chair to the left of him at the desk. She sighed, sitting down.
"Think of her as my secretary." He looked at her, waiting for a rebuttal. She initially refused to stoop to her level.
It had been made clear to her that last night had not changed his treatment of her whatsoever. Or was this truly just his sense of humour?
"Think of it as Mr Aizawa is too dim-witted to keep track of one entire class, so he needed my help." She grins at the class. Aizawa side-eyed her, surprised she had actually come back with something. The class stifled a few chuckles.
"Anyways, apart from that there is nothing to discuss this morning. Please make your preparations for the school day." The class breaks out in a quiet chatter, as the two teachers move to get their own lesson plans and work to mark from out from their bags. They both grab their pens and get to work.
However, it was at this moment, that Y/N learned that Aizawa was left-handed. Their arms got in the way of each other as they tried to write. They glare at one another, before Y/N whacks his elbow with her own. He tries to push her right arm with his left as he writes, her pushing back at the same time. From the perspective of the classroom, this was easily assessed as childlike bickering.
"Move your fucking arm." She mutters, pushing his elbow, creating a pen mark across his paper.
"Move yours." They continue to shove each other whilst trying to write.
"Switch seats already!" Bakugo shouted from his desk, fed up with their arguing. The two stand up and switch chairs, shooting daggers at the other whilst doing so. The bell goes, signalling they had 10 minutes before their next class. The students go to exit, before Aizawa and Y/N angrily packed up their things and marched off. They silently argued over who got to go out the door first, with Aizawa then blocking the doorway, staring down at her 5'1 frame before very lightly shoving her and getting out the door first.
Seemingly having the same idea, they stormed towards Nezu's office. They slammed the door open in tandem.
"WE NEED A BIGGER DESK." The pair demanded, at the exact same time. They knew far better than to question Nezu's judgement by demanding to end their homeroom arrangement, but knew they could at least try to make their lives easier.
"Sorry, but this is likely a temporary arrangement, which doesn't make it worth it to buy a bigger desk I'm afraid!" He smiled, his expression not quite matching the words coming out his mouth.
"You two will have to put up with each other for now. I believe you both have classes to get to, if I'm not mistaken!" The two look at each other, exasperated. As they left, Aizawa shut the door behind him. Nezu quietly laughed to himself. If anyone else had been in the room, they surely would have thought he was scheming something.
•
Y/N, sore from helping the 3rd years practice what they had learned the previous heroics lesson with her, stretched her arms as she made her way to the staff room fridge. Her eyes quickly scanned the room- the admin ladies were nowhere to be seen.

YOU ARE READING
Those who can, do. Those who can't, teach. (OC/Reader x Aizawa)
FanfictionY/N L/N is a 23 year old semi-retired pro-hero, after waking up after a fight and having her quirk mysteriously disappear. She finds a job listing for a teacher at U.A., and decides to apply, not predicting the level of assholery one of her co-worke...