Mary was the most popular girl at school, and if anything she never had a bad moment in here life, she was always mainly bratty and a gossip girl. Everyone was afraid dissing her, as she could just order harm to them and they'd never know what hit them. She is selfish and uncaring.

(If you choose to be her, you could switch the gender or the name I do not mind very much as long as you are comfy with it.)