Kusaka Shuzaburo is a junior high student attending a school which is due to close. He tries to learn despite the inept teachers and rowdy students. Sugi Toranosuke, his homeroom teacher, is new and idealistic, unlike the other teachers. One day, Kusaka meets three boys, new students at the school: Takasugi Touichi, Yoshida Eitarou, and Irie Sugizou. They transfer to his class and work to change the ethos of the school.