Unohana is a contradiction in herself. Her maternal and friendly demeanor belies her reputation as a notorious and sadistic killer. She was once the First Kenpachi, but now leads the 4th Division of Healing. Her Shikai, Minazuki, manifests as a giant green manta ray that heals the wounded with its digestive juices. In Bankai, Minazuki turns into a dripping red acid that can melt any matter.