Akouzu is a bounty hunter. He is a major antagonist during the Wano Arc. He is only known to battle the Straw Hats once and then lose, and then he sets up a plan to defeat them with the help of Kaido. Not much is known about him though. We don't even know what he looks like- as he wears armor covering his whole body. But we do know his Devil Fruit, the Ensui Ensui no Mi. This fruit is a Logia type that allows the user to create, manipulate, and become saltwater.