Ryo's older sister and a graduate of Yokohama Minato High School. She is talented and she is Madonna at school while she is at Yokohama Minato High School. She, however, has a rather weird personality, and her dream for the future is "a great man who creates history." She has taken care of Ryo when her parents, who work together with her, are busy, and she still keeps a close eye on her with warm and stern eyes.