With a famous face and a winning personality, baby-voiced child star Sana Kurata leads a charmed life. But she runs into trouble during her adventures at school, where the troublesome Akito Hayama and his group of boy bullies do everything they can to terrorize the girls. In an ongoing quest to reclaim the classroom and save their teacher from Akito's nasty blackmail, Sana and her friends endeavor to find the hooligan's weakness.