[At the age of eighteen, just debuted as a pirate, you met the current overlord of the sea in the pirate world, Rocks D. Zibek. Now what you have to do is to find a way to survive in his hands. 】

After traveling back to the pirate world for seventy years, the great pirate Monger, who was ready to retire, looked at his system that was seventy years late.

And the intern in front of him who just turned twenty, hasn't even learned how to be domineering yet, and is working diligently on his own ship.

Reach out your hand.

Bang!

"Captain, what are you doing!?"

"Nothing, I just want to beat you up."

[Ding~, congratulations on defeating the overlord of the sea, Rocks D. Gibeck! 】

...

This book is also known as - "As a Pirate, You Get Younger and Younger"

"How Can You Lose When All the Crew Are Royal-Class? 》

Become...

Saitama from One Punch Man has unexpectedly crossed over to the One Piece world.

In this vibrant and colorful world lies hidden danger that shall be brought to light by the existence of a Hero and bring justice to the common people.

Whether the perpetrators be Pirates or Marines, all shall be brought to justice!

"From now on, let the world feel the pain."

In the sky above Konoha, Uzumaki Naruto spoke indifferently and threw out the large spiral wheel that was as black as ink in his hand. Endless light and heat burst out, razing everything in sight to the ground.

One has not been affected by Asura Chakra, one has lived in harmony with the Nine Lamas since childhood, one has received modern compulsory education since childhood, and one has watched the entire "Naruto".

A different story of Naruto.

The male protagonist of this book is Six Paths Pain from Naruto, and the female protagonist is Konan.

Because of Nagato's identity as the son of prophecy, his soul was saved by the Sage of Six Paths when he was dying and thrown into the world of One Piece.

After being reborn by Six Paths, Nagato established his own new Akatsuki organization in the One Piece world and embarked on a new journey.

The magic of the Rinnegan clashes with the power of the natural fruits in the world of One Piece. The intersection of the tragic character Pain Six Paths created by Master Masashi Kishimoto and the power of the One Piece world created by Master Eiichiro Oda!

Who will be stronger and who will be weaker? Let’s wait and see!