One thing Katsuki hated above all else was a dirty fight.

He felt his eyes narrow as he watched the sparring match between you and another student. You were much smaller than the other, so, he knew that this fight would more than likely end with you on the floor. That didn't bother him. What bothered him is that he saw the other student using their quirk. This fight was strictly a physical fight. Quirks were not allowed to be used. The blonde crossed his arms over his chest, his eyes locked onto the fight before him. He watched as the other student smashed his fists into you, blow after blow.

Then, he saw it. The knuckles on the other students forming into small spikes. He knew his quirk allowed him to move his bones and weaponize them.

Before he could land another blow on you, Bakugo lunged forward, grabbing the student's wrist before it could connect with you again. This wasn't because he felt bad for you, or wanted to protect you. He wasn't being heroic. At least, in his eyes he wasn't.