aokiji (one piece)
Admiral Aokiji (real name: Kuzan) is a former Marine admiral in the world of One Piece.
Having consumed the Hie Hie no Mi Devil Fruit, he has the power to turn into and control ice.
He fought Akainu for the position of Fleet Admiral for ten days, lost (he suffered serious scars and the loss of his left leg below the knee), resigned from the Marines altogether and later joined the Blackbeard Pirates.
