HeavenAnime

High School first year and Sumo wrestler Hinomaru Ushio saves Chizuko Hori from a molester on a train but is himself arrested for only wearing a Mawashi. Hinomaru rushes to school and overhears fellow Sumo student Shinya Ozeki practicing. He offers to spar with him, revealing a heavily scarred yet extremely muscular body. Hinomaru easily wins despite his short stature. Shinya is overjoyed someone wants to join Sumo Club but reveals the other members are all delinquents who use the dojo as their headquarters. Hinomaru confronts them and learns that he accidentally came to the wrong school, Odachi High instead of Ishigami High. He tries to find Ishigami but ends up back at Odachi where he sees the delinquents have destroyed Shinya's Sumo ring. He challenges their leader, Yuma Gojo, to a duel for the dojo and, due to his intense training, easily wins even whilst following Yuma's unfair rules. He then challenges Yuma to a friendly rematch any time. Shinya suddenly realises Hinomaru was a famous Sumo champion in Middle School nicknamed after the Demonic National Treasure, Onimaru Kunitsuna. The next day Shinya starts advertising for new club members and realises Hinomaru has decided to attend Odachi instead of Ishigami and has joined Sumo Club.