Hisana was Byakuya's wife who died of a disease fifty years before the main storyline. As she was a commoner, Byakuya was strongly admonished against marrying her, but did so out of love, thus disobeying the rules of the Kuchiki noble house. She was the older sister of Rukia Kuchiki in their past lives, and both were sent to Inuzuri (a poor district of Rukongai) where Hisana abandoned her sister, unable to support both herself and the infant Rukia. Hisana later greatly regretted this decision, even in her final moments, and searched for her every day during her marriage to Byakuya. In accordance with Hisana's dying wish, Byakuya adopted Rukia as his sister, disobeying the rules a second time. She and Rukia are very similar in appearance.
Im Currently: Online (dident go to school today....sprant my leg or Ankle)