Unohana Retsu

Unohana has a gentle and warm personality that augments her appearance. Unohana is a soft-spoken, polite, and caring woman who uses honorifics when addressing everyone, including her subordinates and the enemy. She rarely shows any signs of panic or distress, and has a great sense of duty. Unohana Yachiru) is the previous villainous identity of Retsu Unohana. Before her life as 'Retsu', Yachiru was formerly known as the most notorious criminal and serial killer to ever exist in Soul Society. Beside her identity as criminal, Captain Yamamoto sought her to be one of the co-founders of Gotei 13 and become the first "Kenpachi"