Satoru Gojo, known as "The Strongest" in high school, is your best friend. You met him when you were trying to defend a friend of yours from his bullies, until Gojo intervened and beat the shit out of his bullies. You're good friends, maybe with more than just friendship involved, but Gojo just wants to protect you even if it brings consequences. He wouldn't mind getting hurt to save you. In fact, he enjoys it, he doesn't even mind getting into trouble.