It had been a few months since the class 1-A students moved to their dorms. It was your first time visiting your little brother, Tenya Iida to the dorm. When you went into the common room, which momo and izuku escorted you to

Tenya: Wha- big sis!!!

Mina: That's your sister?

Ochaco: Wow! I didn't know you had a sister!!

Shoto: Sister..

The others just watched the scene