Daichi Shinagawa is a bona fide “yankii", a juvenile delinquent, who attends a prep high school. In fact, his reputation as a supreme tough is so widespread that he can't walk the street without being challenge to a fight by other would-be thugs, and nobody will come near him at school. He therefore spends his days isolated and alone. Until one day he is befriended by the spectacled class president, Hana Adachi. While she looks like the prototypical serious student, Hana is herself a reformed “yankii" and something of a convivial space case. Daichi soon finds himself unwittingly swept up in her world, helping people with their problems and participating passionately in school events. Together they make for an incomparable duo in this fun and free-spirited high school fable.