Tsuji is a tall young man with thin and smooth chin-length dark hair. His battle uniform is a suit, similar to a school uniform.
Tsuji is rather quiet and stoic, and always shown to maintain his composure. However, he is very shy around females, and the only females he can have a proper conversation with are Hiyami and Hatohara.
- He likes dinosaurs, cream puffs, and butter dorayaki.
- He is acknowledged for his high support ability, and is famous for assists on par with Izumi and Tokieda.