Keizo ( (けい) (ぞう) Keizō?) is the owner of a martial arts dojo and teaches the Soryu fighting style. He took Akaza (while still human) as his student.


Keizo is an older man with a muscular body and unshaven stubble. He kept a shoulder length black hair which was tied and his eyebrows appears to be quite bushy. He wears a white dojo uniform consisting of a top and pants that is tied with a black obi.


Kind, stubborn, trying to help people


He was married, and he and his wife had a daughter who was ill because of this his wife drowned herself not wanting to see the child die, He took care of the child but didn't believe she would live long. He was travelling and found Hakuji (Akaza) and made him to his dojo where the 3 of them lived together he later asked Hakuji to take over and marry his daughter Koyuki. He was then poisoned and died


Abilities and Powers


  • He acquired the dojo after protecting a weary old man from a group of bandits, the man didn't have a successor to inherit the dojo and his land so he gave it to Keizo as thanks for saving his life. [1]



  1. Kimetsu no Yaiba: Chapter 155, Page 6


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