Shutou Masaomi is a student from Tottori Hakurou High School and a member of its sumo club.
Despite his intimidating look, thanks to his large size, Shutou is incredibly shy. He's also very self-conscious due to him having a speaking disability - he stutters. While he also has a relatively strong temper, he reverts quickly to his real nature outside the ring, as when he apologized to Kei for hurting him, which led to the Oodachi wrestler to ask him for forgiveness as well.
He is the brute strength of Tottori Hakurou, but is mostly a reactive wrestler, as he can overpower opponents.
- Shutou Masaomi vs Mitsuhashi Kei
- He loves everything related to biology.
- He has several pets, including a parrot that Tennouji trained to say "Tennouji is the strongest."
- As an adult, he works in a zoo.