Birthplace: Miyagi
Masamune captains Ao High School's men's rhythmic gymnastics club as a third year student—and honestly, the sport means everything to him. His dedication to the team and the sport itself is pretty unmatched.
He's known childhood friends with both Tsukidate and Onagawa. His family runs a long-standing Sasa Kamaboko shop, which is a pretty significant part of his background.
Content compiled by AnimeList.moe from publicly available sources.
