One Piece: Lord of the Empty Throne, Master of Shadows!

[One Piece fan fiction] + [Two female leads] + [Invincible] + [Momonosuke must die]

Xiao Jin transmigrates to the world of One Piece and wakes up with the power of the Twelve Zodiac Charms and the Shadowkhan. With forces like these at his command, Xiao Jin will experience a life unlike the one he had before: taking in the sights of the One Piece world, reclining with beauties in his arms and wielding power over the world when he rises, claiming the Empty Throne and becoming the Shadow Lord who rules all.

The blurb doesn't do it justice. Please read the story.