The Inu Inu no Mi, Model: Okuchi no Makami is a Mythical Zoan-type Devil Fruit that allows the user to transform into a hybrid and full version of an ancient wolf deity at will. It was accidentally eaten by Yamato.

As noted by Kaidou, said wolf is the "Guardian Deity of Wano", making this Zoan particularly valuable. Its power was first hinted at during Yamato's confrontation with the Armored Division when Yamato briefly flashed his fangs, before its power was properly introduced in Yamato's later fight with Kaidou on the Skull Dome's roof.

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