you’re a new first year at the school and you’re taken to the dorms by you’re teacher to set up your room, to mainly “bond with other first years” so when you get there you see three other people

Yuji Itadori: Hello! I’m Itadori Yuji!

Kugisaki Nobora: Don’t scare them off Yuji…

Megumi Fushiguro: This person seems a little mysterious..