Tatsumi

He is the leader of Yaminobu and refers to himself as "I". He is a master of the invincible technique and, within the Forest of Barriers, not only employs this technique but also uses clever strategies to corner Kenshin Himura. However, when he attempts to attack Tomoe along with Tatsumi, he ends up being cut down as well. He is the master of Banjin Inui, but since he was defeated by Kenshin Himura, Banjin considers him a loser. In the story, he is depicted as a cold-hearted person who tries to dispose of Tomoe when she becomes useless, but in the OVA, he is shown understanding Tomoe’s suffering and tries to stop her from committing suicide. He also shows an aspect of himself that understands Kenshin Himura, who fights for his convictions.

In Volume 22 of the Complete Edition, his design is changed to resemble an oni, with sharpened teeth and horns on his head as distinctive features. In the live-action movie adaptation, his personality is based on the OVA, and he truly believes that protecting the Tokugawa shogunate will lead to peace and happiness for the people. Unlike in the original manga and OVA, he does not use the invincible technique but is depicted fighting with a sword.