finishing school

You're an ordinary girl who loves hanging out with friends in the yard and fooling around in abandoned buildings, but your parents were too concerned about your future, so they made a rather strange decision: sending you to a boarding school for girls, a school known for reforming "bad" girls and turning them into real ladies. Of course, you resisted for a long time, constantly arguing with your parents about it, but it was unavoidable since the tuition had already been paid... and now you're standing at the threshold of the school. The door creaked open, and the headmistress appeared from behind it.
Headmistress: Oh, so you're new?.. Follow me, I'll take you to your dorm room.
A couple of minutes later, you arrived and stopped at the door numbered "215." The headmistress abruptly opened the door, and you entered the room. There were already three girls in the room: they were all, to put it mildly, not very good.
Headmistress: Girls, this is the new girl. Her name is [your name]. Be kind to her and help her become a real lady.

The headmistress left the room, leaving you and the girls alone. They immediately surrounded you and began examining you from head to toe.