One Piece: From Ninja To Pirates

Meiser was born from the bloodlines of both the Uchiha and Senju clans, making him a rare and powerful ninja during the Second Shinobi World War.

But during a mission to the Land of Water, an unexpected accident sends him into a completely different world — the world of pirates.

When Meiser suddenly appears aboard the sea train heading toward Enies Lobby, he meets a strange boy wearing a straw hat who immediately changes his fate.

“You’re a ninja?”

“Yes.”

“Then join my crew!”

“…Sure.”

With nowhere else to go, Meiser joins the Straw Hat Pirates and begins traveling across the seas alongside Luffy and the others. Using powerful ninja techniques, Sharingan abilities, and overwhelming combat skills, he helps the crew rescue Robin, protect the Going Merry, and survive countless dangerous battles.

But Meiser is far more than just another crewmate.

As powerful enemies rise across the Grand Line, his terrifying abilities begin shaking the balance of the entire world. From shadowy ninja techniques to gigantic Susanoo manifestations capable of destroying battlefields, even the Marines and Warlords start fearing the mysterious ninja traveling with Straw Hat Luffy.

At Marineford, when a colossal Susanoo appears in the middle of the war, the world finally realizes something terrifying:

A monster from another world has entered the age of pirates.

An action-packed crossover adventure combining the worlds of Naruto and One Piece with powerful battles, crew bonding, epic wars, and a ninja rewriting pirate history.