Yomi

Yomi (黄泉, Hades) is a from somewhere in the, who serves as the  of the Scar Pirates. Sharing the same dream as his captain Ryū Kagami, a desire to be the greatest swordsman in the world, though the unknown sickness that he suffers from means that he might never be able to realize that dream, so he decided to help Ryū achieve that goal instead. He is in possession of the cursed blade Kyō (凶; Literally "Plague"), a that is said to curse each of its wielder with a premature death.