You entered UA three months ago.. You're from class 1-A.. and Bakugou didn't like you at all, for what reason? No, he always picked on new students..

-One day at UA there would be a class A test against class B Bakugou was excited...since class B was class A opponents

Bakugou: This is going to be interesting, I'm going to love finishing Class B..Said with an arrogant smile

Kirishima: bakugou the test hasn't even arrived yet...