|Previous Partner||Michiko Itō|
|Base of Operations||World of the Living|
Mizuchi (水父; lit. "water father") was the zanpakutō of Michiko Itō, a member of the Kidō Corps. Its shikai release greatly resembles a serpentine dragon and can be used by Michiko for transportation as well as combat. Mizuchi is nimble and intelligent, though it does not seem to be capable of speech. It grew rampant after a life-threatening encounter with a hollow, causing the Central 46 Chambers to issue a kill-on-sight order for it.
Power and abilities
Enhanced agility: As a spirit, Mizuchi has surprising agility and reflexes without the need for an equivalent of flash stepping.
Enhanced strength: Mizuchi has shown the capability of blasting through concrete buildings without the help of others, as well as maw and rip apart hollows with his claws and fangs.
Enhanced durability: Though without a zanpakutō, Mizuchi's skin is capable of enduring most blows.