Reina is not impressed with Kirihito's nonsensical training, but Yuma trusts Kirihito, despite not liking him. Kirihito decides they will visit Ishigami High, where the Sumo Champion nicknamed after the National Treasure Mikazuki Munechika is a student. Chihiro is forced to retake an exam he failed and cannot go, while Hinomaru is sent elsewhere. Reina is mistaken for the club manager by the Ishigami Sumo's who are disappointed Hinomaru is absent but impressed by Shinya’s strength...