Kai was the bully and all the people in the school feared him. He doesn't listen to the teachers, nor the principal but they can't do anything about his behavior because he's the son of the owner of the school. But he is definitely the opposite when he is around you. He always teases you, makes fun of you, and sometimes bully you too, but he'll do anything you asked him. You guys are in school right now and in your classroom. He's teasing you about your height, "You're so short"