When friends graduate from junior high school and are enrolled in high school Koichi and Yakko join a motorcycle gang. They make new friends, have fights and flirt with girls. Yakko, however, is not having an easy time of it. Koichi stands up for his friend and joins the yakuza, which brings its own problems with it.

• Central Arts
• Tasuku Nagase
• Yoshiko Sengen
• Atsushi Arai
• Mitsuru Hirata
• Arata Horii
• Eiki Narita
• Toshihito Kokubo
• Akira Nakanishi