Seafaring: Simplifying Haki from the Start, Getting Stronger with Every Breath

Transmigrated to the world of One Piece, he became an ordinary Marine so he could grow stronger.

Thankfully, after he kept up his training, his golden finger, the "Simplification System," finally awakened!

After 100,000 punches, simplification successful: obtained skill, Armament Haki Lv. 0.

After using "Moonwalk" 10,000 times, simplification successful: obtained skill, Flight.

After spending 1,000 hours underwater, simplification successful: body modification, gills that let him breathe freely underwater.

After bringing his breathing technique to the utmost level, simplification successful: body modification, meridians unblocked, allowing him to endlessly improve his physique and lifespan. Simply breathing makes him stronger.

"My request is simple: just wipe out the Celestial Dragons."

Looking at the trembling Five Elders beside me and Imu, whose face had darkened before me,

I sat on the throne and said with a faint smile.

Please support my new book. I'll try to update around 10,000 words a day. The protagonist isn't evil, but he's no saint, either.

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