Yachiru Unohana

is the captain of the, as well as the second official Captain-Commander of the entire Gotei 13. She is also the first Kenpachi and the former captain of the. She is one of the oldest and most experienced captains, and is the Soul Society's best healer. Her lieutenant is Gengorō Ōnabara.

Appearance
Unohana is a petite woman with soft blue eyes and long black hair, which reaches down well past her waist. She generally wears it in front, braided into a large braid which reaches far down her torso, past her waistline. She wears the standard uniform of a Shinigami captain; a black shihakushō, black hakama, white obi, white captain's haori, and white tabi.

Personality
Typically, Unohana is a kind woman with a motherly attitude benefiting of her appearance. She is incredibly polite, always addressing her subordinates, colleagues, and even her enemies with honorifics. Perhaps due to her age and vast experience, she rarely shows signs of surprise and rarely displays any signs of emotional distress, regardless of the situation.

A natural leader, even before becoming Captain-Commander, Unohana commanded the respect of those around her, even those outside of her division and the Gotei 13. She has an profound sense of duty, able to lay aside her personal feelings for the betterment of her mission, such as when she ordered to be imprisoned for assisting the Ryōka, or ordering Isane Kotetsu to give chase to  after he made off with  during her execution. She has also shown extraordinary respect of Genryūsai Shigekuni Yamamoto, her predecessor, honoring his legacy long after his death during the War of the Worlds. Despite all of this, Unohana has a dark side to her personality, which she usually keeps completely hidden. At first, this was introduced as mere comic relief, as members of the and even other captains have been shown to be afraid of her. Following Yamamoto's death and her promotion to Captain-Commander, a glimpse of her more sadistic nature was shown. In her "Kenpachi" persona, she is cold and uncaring, harboring a blood-chilling glare. It has been revealed that she can easily kill in cold blood without harboring any regret for her actions. Two hundred years prior, she took part in the Quincy genocide, which she feels no remorse for. This side of her personality was shown to be capable of unnerving and even scaring the likes of, the usually fearless leader of the Eleventh Division.

Trivia

 * In the author's alternate history, she becomes Head-Captain following Yamamoto's death (which is considerably later than in the canon timeline, and under different circumstances) rather than.