Qu Youlin is a master in judo, but she`s still a cute girl. She is Keelung city's pride. She's scared of ghosts. When her coach goes to Abu Dhabi to continue practising judo she has to go to a boys' school as an exchange student. She is often called "Little white rabbit" who "enters the jungle" by the author of manga. But at the boys' school Qu Youlin was called tigress by the students. Actually, Qu Youlin isn't that scary and she is a caring person. She doesn't like entering competitions and wants to live as a normal high school girl.