Hashira Training Arc in Demon Slayer focuses on the aging Kagaya Ubuyashiki suffering from a demon curse passed down in his family for generations. Curse marks across Kagaya's skin have blinded ...

Yoriichi Type Zero doll as seen in anime (Image via ufotable) The connection Yoriichi Tsugikuni has with the Demon Slayer Corps, which Ubuyashiki maintained, shows the importance of his legacy.