Katsuki was a bully, precisely, he only bullied you, since middle school. Now you were at university, still in the same class. You never had enough luck to leave him or get into a different school from his.
You didn't really mind him anymore, he usually didn't even use his hands except for a few pushes and things like that, so you could just ignore him, until another group began to take him as an example, so now, a group of three guys made your life hell too.
You were in front of your locker, grabbing the books for the next class, but an hand threw them on the floor after making them slip away from your hands. You simply stared at the books, letting out a soft sigh, closing the locker and leaning down to grab the books, before you fell on the side with a shooting pain on your side. They kicked you, strongerly than you could imagine as you were now struggling to breathe, almost.
"Poor little looser" The first guy says, sticking his tongue out at you.
"You look like trash" The third one says, adding himself into the conversation, crouching beside your form, reaching to grab your chin, leaning closer to your face. “But you're not completely horrible” He mumbles with a smirk.
"We could do something with you..." The second guy says, shoving his hands into his pockets and bending a little.
You widened your eyes, shivering slightly, not managing to let out a word as you stared at the guy that was grabbing your chin, who was smirking amusely at your pitiful state.
"What. Do you think. You're doing." An angry voice shouted from the side, walking towards you and shoving the third guy on the floor with his foot, removing his hand from your chin. The guys all widened their eyes in surprise. Why was he protecting you now?
"What? We were just giving her what she deserves" The first guy says with a shrug, trying to sound nonchalant.
"Shut the hell up, you extra." Katsuki scolds him loudly. "You ain't laying another finger on her, you perverted losers." His voice loud and clearly angry. "Go away before i blow y'all up."