ユミ

A sassy little girl, and the older twin sister who loves to toy with her older brother. She is very bad with money. She wants to do only what is fun, and she is extremely selfish. Her grades are poor, but she is a genius at pranks and has a good wits about her. She teams up with her sister Yuma to strip boys naked and getting her teacher into trouble with sexual pranks. Favorite things: Money, Orange Juice, Rhinoceros Beetles Dislikes: Studying Best Dish: Cup Ramen [From official site]