A Ninja God in the World of One Piece

After transmigrating into the world of One Piece, he obtains the Divine Tree System. Every time he gets a Devil Fruit, he can gain a ninja's abilities or summon a ninja!

Uchiha Madara, Senju Hashirama, Kurama...

As one ability after another and one powerful figure after another arrive, the Marines are transformed beyond recognition!

"I never imagined the legendary ninjas would be this terrifying!" Kaido of the Beasts says gravely.

"He cut the Red Line in half with a single slash. He's the greatest swordsman!" Mihawk says with a rueful smile.

"Where exactly is the Akatsuki? And what kind of force is the Village Hidden in the Leaves?!" Sengoku says, looking grim.

Now that the world of pirates has gained a ninja world of its own, the seas have already erupted into chaos!

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.