A high school is badly run. To restore the school, the Akimotogumi yakuza, including their leader Shigesato Akimoto (Toshiyuki Nishida) and their number 2 man Seiji Himura (Hidetoshi Nishijima), appear at the high school. The Akimotogumi yakuza group are old school and they value the most a sense of duty and humanity. Shigesato and Seiji look scary, but they try to restore the school as best as possible. Due to them, the school begins to change. They are then challenged by others.