She is a slim and youthful-looking woman with blue eyes and long black hair worn in a large braid down the front of her body. Despite her gentle and warm personality, she possesses a violent and bloodthirsty nature that she reverts to when drawing on her past as the first Kenpachi. Unohana has a great sense of duty and is highly respected as Soul Society's best healer. She is soft-spoken, polite, and caring, using honorifics even when addressing her enemies, but is not to be taken lightly.