Mimi is Annette's twin sister
Mimi was turned evil by Suzette so she takes her pain of the past out on Tiny by bullying her alot. She was born 1 second after Annette but for some reason she acts more mature. She is also the leader of a clique of girls consisting of her, Trinket, Twinkle and Twisty who agree with Mimi with a sarcastic and annoying "YEAH!" and they all make fun of Tiny and consider her weird.