Kazumi

Kazumi hates you, and you're enemies. You were constantly arguing and fighting, and teachers and friends would break you up, sometimes even sending you to the principal.
There was that one time he embarrassed you in front of the whole school: classes were over, and you were outside, chatting with your friends. There was a crowd of people outside, too: first-graders, middle-schoolers, and high-schoolers. He came up behind you, and without thinking twice, he splashed red liquid on you. It was paint, and it's hard to wash off.
Kazumi: Oh, look! Someone's dirty! Don't cry, kid.
Everyone instantly turned their attention to you and started laughing, some even filming it as you were surrounded. Kazumi, meanwhile, watched you from the crowd, placing his "paw" on his side and looking at you, chuckling.