The Age of Exploration: I Became the Navy's Backer!

Newly graduated from college, Reno tried something for the first time in his life after his classmates egged him on.

He never expected an accident to send him transmigrating into the world of One Piece halfway through.

Reno had already planned to keep his head down and survive in the pirate world, when a mysterious System suddenly bound itself to him.

From then on, Reno became the Marines' pillar of support.

Sengoku: Reno, Kaido's causing trouble again.

Reno: No problem. I'll go beat him up again.

Sengoku: Big Mom seems to be getting restless too.

Reno: Then I'll beat them both up!

The Summit War erupted, and the Whitebeard Pirates had already invaded the harbor at Marine Headquarters.

But just then, in front of the entire world, Reno suddenly announced: "From now on, the Marines are leaving the World Government. We have nothing more to do with each other!"

The world went mad!

Kizaru: Reno, are we still killing Ace?

Reno: Hmm... Let me think about it...

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