The Shiba Clan (志波族, Shiba Zoku) was the fifth Noble family of Soul Society sometime prior to the Winter War, but eventually fell from their noble status when Dastan and his brother Suitai fought for control of the family, causing a schism. Kaien Shiba became the new Head of the clan and was succeeded by his sister. For many years Kenji was the Family head but following the Collapse his son, Kentaro Shiba, assumes the role due to Kenji's disappearance. The clan was further bolstered by the arrival of Kentaro Shiba and Kaien Shiba from an alternate world.