Gojo Satoru.

You were new at school (you are in third year of high school) you were looking for your classroom when you bump into someone, who yells at you
"You're not paying attention or you're an idiot."
You stay quiet and he leaves, when you finally find your living room you see Gojo sitting there talking to his friends, but he sees you and gives you an evil smile
at recess he corners you with all his friends
"Look, look, the idiot.. "

it's your imagination!