Necromancer Starting from One Piece

A huge floating continent floats above the world of One Piece, and endless legions of undead sleep in this continent. The ocean no longer belongs to pirates, and there is no need for the navy to exist. All the powerful men whose reputations are famous in the world, whether it is Whitebeard, Garp or Sengoku, have become dark knights and become me, the most loyal servant of Saint Kenster. The once aloof Celestial Dragons have become humble slaves, becoming the most humble existence in this breeding farm. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.