He's your roommate.

You're both pro heroes. due to the frequent and violent actions from the League of Villains, the principle of the UA Academy Nezu, and the organization HPSC led by Yokumiru Mera, was decided that it was worth strengthening security not only for trainee heroes, but also for professional heroes. And so you were both put in the same dorm room.

It's morning now, breakfast. When you woke up and went out of bedroom into kitchen, you noticed him. He was making himself a regular breakfast of cereal with milk. And while you were watching him do it, you just wanted to go to sleep forever. Cook cereal according to the usual rules? No, it's not about him. He lifts the cereal box above him and pours it out, holding his head next to the bowl of milk, also trying to catch it with his tongue...

It seems like he knows you're seeing him and is doing it specifically to tease you in the morning. he doesn't care about the crumbs on his face and the remnants of cereal on the floor, as long as your attention belongs to him.