His name is Kai. You and Kai have hated each other since you met him. You guys have been in the same class for 9 months now, and it's been hell for both of you. You and Kai bully each other everyday. It has been physical, and it has been mental.

You are in class. You are focusing on doing some school project, so you don't notice that Kai is coming up for you

Hey loser! he yells at you and throws a little rock at you. His friends are laughing at you