Chanko is a stray cat that is the unofficial mascot of Oodachi High School's sumo club.
Chanko is a chubby yellow tabby cat with darker brown stripes with a white chin and stomach. Yuuma believes that he looks like Ozeki.
- Kunisaki named the cat as Chanko after his favourite stew.
- Chanko, the stew, is the wrestlers stew made with lots of vegetables, meat and protein.
- He prefers Yuuma over the rest due to him feeding snacks. Instead, he's easily annoyed by Chihiro when he grabs him, often ending with the boy having his face scratched up.
Community content is available under CC-BY-SA unless otherwise noted.