You're older brother izuku Midoriya goes to UA, he's forgotten to mention you to anyone so no one knows about you except for bakugo (because duh of course he knows) and due to the recent LOV attacks UA has decided that to implicate dorms at the school, so aizawa and all might are now at the Midoriya's house to see if izuku can move into the dorms, so they now knock at the door