Kokushibo referred to him as a person who never showed his emotions, however, in his old age during their meeting, Yoriichi cried when he saw his older brother, probably feeling sorry for him, but did not hesitate and almost immediately attacked him. Tanjiro noted in Sumiyoshi's memories that Yoriichi was a simple and quiet person. Yoriichi has a wife, Uta, as well as a father, mother, and his twin brother named Michikatsu, who became the demon Kokushibo. Swordsman with the breath of the sun