After Guarding Impel Down for Twenty Years, I'm Invincible at Marineford!

In the year 1498 of the Sea Circle Calendar, Chu Yexing transmigrated into the world and became an ordinary guard at the underwater prison Impel Down.

In a world where extraordinary powers such as Devil Fruits, Haki, and martial arts existed, Chu Yexing, who couldn't even defend himself, had to tread carefully.

Fortunately, the Prison Code appeared and changed his fate.

"Congratulations, you have become the warden of Impel Down!"

"For guarding the Pirate King, Roger, you receive the reward: Divine Departure!"

"For guarding Fire Fist Ace, you receive the reward: Flame Emperor!"

"For guarding Golden Lion Shiki, you receive the reward: the ability to fly!"

"For guarding Red Count Redfield, you receive the reward: ..."

In the year 1520 of the Sea Circle Calendar, the Navy Headquarters at Marineford publicly executed Ace.

Whitebeard led his entire crew into the Summit War.

Blackbeard and his men took the opportunity to break into Impel Down. Warden Magellan was defeated, and Impel Down was in peril.

On the sixth level of the Infinite Hell, Chu Yexing, who had guarded the prison for twenty years, suddenly opened his eyes.

"Who goes there? How dare you run wild in Impel Down?!"

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