The narrative centers on two-time champion Takarayama in the world of sumo wrestling. Following his victories, he believes he will be promoted to yokozuna, the pinnacle rank. However, instead of receiving this promotion, Takarayama is unexpectedly transported to another realm by Elise, Iris, and Franca, who are unaware of how to return him home. Meanwhile, as they search for a solution, the trio grows hungry, prompting Takarayama to prepare Chankonabe, a traditional stew consumed by sumo wrestlers.