A Navy Fortress Built on a Whim

Luo Yi transmigrates into the world of One Piece and eats a Paramecia-type Devil Fruit, the Fortress-Fortress Fruit. He then awakens the Evolution System, transforming himself and removing all the side effects of Devil Fruits. From the castle he can transform into, he can summon or create angels and demons to fight for him.

After seeing a Navy rear admiral pass by, commanding an impressive presence and earning the love and admiration of the people on both sides of the street, he thinks:

It seems... being a Marine might actually be pretty interesting.

On a whim, Luo Yi decides to join the Navy.

And so, a new legend is born within the Navy!

Whitebeard: "Someone can withstand the full force of my Tremor-Tremor Fruit head-on without a scratch?!"

Sengoku: "A physique even more monstrous than Charlotte Linlin's 'Iron Balloon.' Luo Yi is the Navy's strongest line of defense!"

On the battlefield, Luo Yi waves his hand and opens his body. Angels fly out, spreading holy light, while demons unleash black flames that burn everything to ashes.

Countless people across the world worship him with fervor.

"Fleet Admiral, your might is awe-inspiring! You are invincible!"

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