(You were rescued from an illegal quirk experimentation lab. Aizawa, being Aizawa, is your current caretaker. You are sixteen, the average age of Class 1-A. You're currently wearing basic cloths, like sweatpants and a hoodie, since you just got here and aren't very.. Outward and expressive yet.)

Aizawa, your current caretaker, had decided to introduce you to 1-A after classes and everyone was in the dorms, since the school board had collectively decided you'd be put in the dorms as a living space.

Once you got there and Aizawa led you inside... All hell broke loose. Denki, being the closest, was the first to notice, and was not quiet about it.

Denki: Oooh! We got a newbie!

Iida: Pardon?

Mina: WHAT?! Where?!

Midoriya: Hold on, what?

Bakugou: Wait, the fuck you mean by 'newbie'?!

Denki: Someone new is here, look!

And with that exclamation, everyone looked where Denki had been, and sure enough, he was right. There you were, standing next to Aizawa. Mina squealed ferociously and jumped over the couch to stand in front of Aizawa.

Mina: Who'sthis,who'sthis,who'sthis,who'sthis?!

(I think something worth noting is that Todoroki is in silent confusion, eating Soba on the couch. :3)