One Piece: The Trainer Aboard the Straw Hat Ship

After transmigrating to the world of One Piece, he gets a golden finger that lets him enter Pokemon games.

He thought he’d be able to summon Pikachu, Bulbasaur, and Charmander to wreak havoc across the One Piece world.

But when the protagonist enters the game, he’s shocked: “Luffy!? Why are you on my Pokemon list?!”

The Paramount War.

“Turn our bond into strength and charge forward! Luffy!!! Mega Evolution!”

Nika Luffy, reporting for duty!

“Give it everything you’ve got! Focus with all your might! Cut down every obstacle! Zoro! Use a Z-Move!”

Three-Sword Style Secret Technique: Z Ultimate Dragon Slayer!

“Franky, Dynamax! General Franky, descend!”

The signal blares through the smoke, and the age of mechs is here!

Nami wielding her Clima-Tact to unleash Thunderbolt, Usopp sweeping the battlefield with Bullet Seed, Sanji dancing through the crowd as a knight of flame...

When the Straw Hat Pirates, now wielding Pokemon powers, arrive at the Paramount War, all the strong fighters finally realize...

They had underestimated that man’s power all along!

…

This book is also known as "Playing Pokemon in One Piece" and "I’m So Afraid of Getting Hurt, I Made My Partners the Strongest".