Captain of Squad 6. Patriarch of the Kuchiki Clan, one of the Four Great Noble Clans and elder brother-in-law of Rukia Kuchiki. As a nobleman, he has disciplined himself to be a role model for all Soul Reapers and rarely shows his emotions, but there is a passion in his heart. Following the turmoil in the Soul Society, he comes to respect the pride and bond between himself and his fellow Soul Reapers.