- Official name：築館敬助
- English name：Keisuke Tsukidate
- Chinese name：筑馆敬助
- Other names：つきだて けいすけ
- Gender：Male
『Keisuke Tsukidate』
Birthplace: Miyagi
Keisuke is a third year student and the deputy captain of the Ao High School Rhythmic Gymnastics Club. He pays attention to the members of club.
Moss bonsai is hobby. His house is a shrine.
Play in works
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