is a rookie of Hieitai, an expanding military organization under the direct authority of the nobility of the Land of Fire. Alongside his partner, Akane Tanigawa, Tōjirō serves as an initiate of the Investigation Bureau, a division within Hieitai dedicated to inspecting and eliminating criminal activity in the nation. The nature at work puts him at occasional odds with the shinobi of Konohagakure due to the arguable overlap in jurisdiction and authority.