Igaguri, who transferred to Higashi Junior High School, is a skilled judo practitioner who has won numerous competitions since he was young. He possesses great talent in the sport. Living with his father, who runs a barber shop, after his mother passed away, he has grown up to be a strong, upright, and resilient boy, obediently following his father's instructions. However, as he encounters rivals such as Imahisa, the captain of the judo club, various conflicts and turbulent events unfold one after another.