One Piece: The Peerless Thunder God

In his previous life, he was a top assassin, murdered by his superior. He unexpectedly transmigrates to the world of One Piece and obtains the Rumble-Rumble Fruit. Through constant challenges and training, he becomes a generation's Thunder God, ruler of the pirate world. The Straw Hat Pirates, the World Government, the Whitebeard Pirates... He cuts through them all with ease, striking down anyone who stands in his way. He is determined to turn the entire pirate world upside down!

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.