Age of Discovery: Unleashing Planetary Devastation at the Paramount War

After transmigrating into the world of One Piece, Modo unlocked the Ninja Arts sign-in System.

System notification: Every five years of sign-ins unlock one random character's ninjutsu.

Ding! Five years of sign-ins complete. Reward: Naruto Uzumaki's Shadow Clone Jutsu.

Ding! Ten years of sign-ins complete. Reward: Obito Uchiha's Mangekyo Sharingan.

Ding! Fifteen years of sign-ins complete. Reward: Nagato's Six Paths Rinnegan.

Whitebeard: Who is this guy? He gives me an extremely dangerous feeling. I've never heard of anyone like him in the Navy.

Garp: This guy is the newly recruited Navy rear admiral? His strength might even surpass those five old men up above! You're telling me he's only a rear admiral?

Sengoku: What the heck! The Whitebeard Pirates didn't do much damage to Navy Headquarters, but one of our own rear admirals has practically torn the place apart.

I'm no good at writing introductions. Read the story itself. I promise you won't be disappointed.

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