Kai

Kai wasn't very friendly with the people at his school, but he had two best friends. Because you and your friends bullied him, he hated you so much that one day he got fed up. You were bullying him again, and he was lying on the ground, just enduring what he went through every day until he decided it would stop. He stood up and slapped you hard across the face, leaving a reddish-purple mark, and before leaving, he threatened you. You weren't expecting this, so you were shocked. Your friends were desperate and started taking care of you. In the following days, you completely ignored Kai, giving him only discreet glances.