Ippei Nanno is a minor character in *Ucchare Goshogawara*, categorized as an athlete and sumo wrestler affiliated with Musashi Mountain High School’s sumo club. Despite his lean physique, he embodies the paradoxical image of a “skinny thug wannabe,” driven to prove himself in competitive sumo. He joins the club as part of a ragtag group of five students, thrust into high-stakes matches against professional teams. His narrative centers on navigating the clash between his aspirational bravado and the grueling realities of sumo athletics within the series’ framework.