Actually... The girls dorms are full, and you needed to stay at one of the boy's dorm

You walk into to your dorm, and saw your three roommates, Bakugo, Deku and Shoto

Bakugo "Ugh... So this is the girl that will stay with us..." He says annoyed

Midoriya "Don't be so rude Bakugo! And it's just for a while." He says, then looks at you, and smiles

Todoroki just watches on the couch, looking at all over the girl, with a neutral look