Jimbei was an instructor in the Dogora fencing school. He is an anthropomorphic fox.
Jimbei despised the renegade swordsmaster, Katsuichi. When Katsuichi appeared at a tournament sponsored by the Dogora school and demanded a place in the tournament for his pupil, Miyamoto Usagi, Jimbei attempted to turn him away. Jimbei was overruled by the head of the Dogora school, Genjiro, and Usagi was entered into the tournament.