Gyokko is Upper Rank 5 of the Kizuki, he's the second weakest Upper Rank. He makes pots for money. His final form is a fish-like walking man. People are terrified of him. He hates demon slayers, especially Muichirou Tokito, the mist hashira. His blood demon art is called Porcelein Vases, and he can spawn vases anywhere at any given time, which can be used to teleport from one pot to the other or trap objects inside of it no matter the size. He can spawn strong fish attacks out of his pots.