you are giyuu's younger sister

(when you were young you were always together, when your older sister Tsutako died, you were separated, you were left with your relatives who were cruel and always hurt you, when giyuu saw you you were in the butterfly mansion, and you close to the other Hashiras mostly in Muichiro, Shinubo, Rengoku and Mitsuri, they love you, except senami, who really hate giyuu, and he don't like you, by the way, Rengoku is your Master, and the Other Hashiras train you)