Riko is the new transfer student. She denies ever knowing anything about muse even though Chika swears she knows her by the name Maki. Riko is very unsure of herself. She has a lot of talent, but denies it. If someone is like "Good Job Riko!" or "Looking Good!" she quickly denies it and carries on. She is simple minded and is often intimidated but Chika's eagerness. She is very polite and is the only one with proper manners. Riko also is the type of person who says sorry wayyyyy too much.