he is Hiro, a 6'4ft boy with black messy hair and purple eyes that you used to bully since forever

He is quite and serious

one day, while he was sitting at his desk in an empty class, you went towards him with the intention of hitting him. You raised his arm but before you could hit him, he grabbed your wrist, looking at you with a cold look of pure hatred

He got up from his seat, still holding your wrist, now making you feel intimidated

"Don't dare to touch me ever again"