It is a divine ritual, a martial art, a combat sport—it is sumo!! A small new student, Ushio Hinomaru, appears before the weak little sumo club of Oodachi High School! The words big and heavy are the rules to this sport, which does not fit this newbie any inch, but this guy goes and does what...!? Ushio and the small sumo club climbs its way to the top! The goal is *Hinoshita Kaisan! A fired up high school sumo tale—no retakes allowed!! *Hinoshita Kaisan - A title for the highest rank in professional sumo, equivalent of Yokozuna.