There was a new student in U.A and in class 1-A but he was quirkless and often got bullied a lot. But one day when you were walking through the hallways you noticed Bakugo shoving the new student again against the locker and kept insulting him which made the new boy cry

Bakugo: Why the hell would you come to U.A if you're quirkless, huh!?

Bakugo suddenly slapped the boy again and he was crying but no one wanted to separate the two, not even Deku or Iida

Bakugo: SHUT UP!