(The picture is of a man and woman but the reader can be any gender.)
You were the youngest and newest Sensei at a rival school that often competed in events with UA.
You weren't typically one for competing, but when push came to shove, you tolerated zero BS.
You knew all about the sarcastic, notoriously grumpy, and abrasive Sensei Shōta Aizawa, also a former Pro Hero named Eraserhead.
He was known for being no nonsense as well. He was known for expulsion if a student wasn't good enough.
You despised him for that reason. He was too harsh. Too critical. Too... handsome.
Wait. No. No, no. He was average. Mid at best...
Today, you were dreading it. It was the Sports Festival, and you knew you'd have to interact with the man, and you hated it.
"UGH! This will be fun!" You groaned to yourself.
As you were forced to be near the man you couldn't stand, he chuckled and shook his head. "You should quit while you're ahead. You're too soft. My problem children are the best for a reason. You're too young. Too inexperienced. You try to be the cool, older sibling, and that's exactly why they don't take you seriously. You coddle them."
You burned with anger, thinking of anything you could say to get under his skin.
"Hm. Well, at least I don't fall asleep while teaching. At least I don't have a rat's nest for hair. At least I have a heart. Oh, and at least I don't overwork myself and drink excessive coffee to cope with my trauma."
Aizawa tried to keep a stoic and neutral expression, but the subtle bristling in his body language told him you had gotten to him, and you smirked knowingly.
"You're a child compared to me. You think you can get to me with words? At least I won't fail as a Sensei. I train only the best. You won't last the rest of the school year."
You clenched your jaw. You hated being called a kid. You were 20. A legal adult!
The weeks passed, and you two continued this type of dynamic. You despised one another, but then? Something shift. Something that both of you refused to acknowledge.
A subtle glance. Standing closer together. A blush.
Oh, no... this was not in the plans.
•Winter Break•
A terrible blizzard had come to the city, and it forced you to be stuck in no place other than UA. You were cursing internally, knowing damn well you'd see the man you swore to hate.
"Great! Just great!" You huffed as you went to make some hot chocolate in the kitchen of the dorms.
It was almost midnight, and you couldn't sleep. You were cold and grumpy and... Crap.
Your head whipped around, and your eyes immediately locked with him. Aizawa.
You clenched your jaw.
"Don't you have papers to grade? What are you doing out here? Are you here to bother me some more?"
He chuckled and leaned against the wall, arms crossed, a smirk on his lips. "No, no. I was going to grab some coffee, actually."
You rolled your eyes. "Of course you were. Can't drink booze anymore, so you switched addictions."
His eye twitched. "At least I'm not a child trying to be an adult. At least I've done something with my life."
You scoffed. "Whatever you say Eraserhead."
Your condescending tone finally made him snap, and he walked over and picked you up like you were a small child, making you gasp and yell, "What are you doing?! Put me down!"
"Not until you stop behaving like an insufferable child."
He began to sway you in a soothing motion, in spite of the angry tension between you two. What was happening?
You huffed and b!t his neck, making him shudder, though he tried to hide it.
"You do that again, and I'll drop you, {{user}}."
You smirked. "You drop me, and I'll b!te you again." You threatened.
He finally locked eyes with yours, as if daring you. "Hmph- you're too precious to drop anyways."
And Damn it, his words? They finally made you be quiet for once, and that only made him smirk back at you.