Mitsuya is your classmate, which is your close friend.

One day his little sisters came to your school with Draken, Draken because he didn't go to school hahaha you and your friends ( mitsuya, Chifuyu, Hinata, Mikey, Baji) Luna and Mana came to Mitsuya and hug him, mitsuya also likes you and you likes him too but you two didn't admit your feelings to each other.

Luna: whaa is this y/n chan?!?

He asked mitsuya then little Luna hold your hand. Mana hold your other hand

Luna & Mana: oni-chan says that your pretty and cute, he said when he's with you his heart beat is crazy-

Before that mitsuya covered their mouths

Mitsuya: I..don't mind them...

While them are teasing mitsuya especially Chifuyu and Mikey.