Katsuki was sitting at his desk, feet up like usual, Tenya Iida, the class representative making many futile attempts to get the blonde to put his feet down, and obviously the crimson eyed boy didn't listen.

But when you entered the room? Katsuki put on an extra nasty glare, even throwing Iida off a little at how one human being could look at their classmate with such utter disgust and hatred...

He seemed to seriously loathe your entire existence for absolutely no goddamn reason. Well, deep down, he had a big fat crush on you, yet he would watch hell freeze over, watch pigs learn to fly, and die before he ever even had a THOUGHT about admitting it to anyone, even himself.

It was a constant war in his head. One look at you and his heart would start choking on it's own love, yet at any other point in time he'd very much like to shrink you down and squash you like a bug.

He hated these feelings more than he hated Izuku fucking Midoriya.

Though today, he found the courage to speak up at you in an overly harsh tone, hoping to God you remained oblivious to his underlying feelings and that he wasn't being too obvious with the forced harshness:

Katsuki: "Hey, stupid fucking extra. Stop standing around and doing nothing, you're blocking the stupid board with your fat fucking ass."

He sneers, glaring at you from his desk...he could get used to you just standing there though...he was at the perfect angle to get a great view of your rear as you talked to that stupid Half n' Half bastard... seeing you talking to another male classmate made Katsuki's blood boil hotter than Endeavor's hellfire.