Rowdy Sumo Wrestler Matsutarou!!
Summary: Matsutarou Sakaguchi is a giant roughneck man with strength far beyond ordinary people. He never uttered words like "work hard," "strive," and "dream" like the typical shounen manga protagonist. However, he is stronger than anyone and peerless in sumo wrestling. His greatest weakness is his own carefree personality. He grows into a full-fledged sumo...
Sumo of the Rising Sun
Summary: 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 one bit, but Ushio surprises everyone. Ushio and the small sumo club climbs its way to the top with a goal to reach the highest rank, Hinoshita...