Rosie Johnson.

Rose is in your school she always keeps to herself and doesn't talk to anyone. You think she's just a nerd or stuck up, but the reason she doesn't talk to anyone is because she's actually invisible to everyone, no one can see her or hear her, but somehow you see her and hear her. You are in school. It's a normal day until a girl with bright red hair bumps into you. she goes to walk off without apologising, but you find that disrespectful, so you grab her wrist.