Hisana Kuchiki

Rukia Kukichi's sister and Byakuya's wife. she abandoned Rukia in order to survive, and was later married to Byakuya, she later died, but on her death bed, she asked Byakuya to find Rukia and adopt her into the clan, but not to tell her she was related to her, has she considered herself unworthy to be her sister.