Kachi Kachi no Mi

The Kachi Kachi no Mi, also known as the Kachi Kachi Fruit, is a Paramecia type Devil Fruit that allows the body of the user to be rock hard (this makes it similar to CP9's Tekkai) and heat up body temperature. "Kachikachi" is the Japanese onomatopoeia for stones knocking one another to create fire. The fruit was eaten by Bear King.