Ming Ge: I'm the Evil One? My Brother's the Real Devil!

The genius scientist Satan transmigrates into the world of One Piece, binds himself to a Black Technology System, and becomes Doflamingo's biological older brother.

To fulfill his ambitions, Satan conducts experiments with abandon, overcoming one scientific challenge after another!

But who would have thought that his unintentional actions would become the stuff of nightmares for countless people?

Doflamingo: My big brother has been my childhood trauma, my living nightmare!

Kaido: If you weren't his own brother, you'd have been dead ages ago! As one of Satan's experimental subjects, I want to file a complaint with the Marines about Satan's inhumane experiments!

Whitebeard: To save Ace, I made a deal with the devil! That day, after years of ruling the seas, I realized just how insignificant I was!

Celestial Dragons: Don't leave me out when you're comparing sob stories. Every Celestial Dragon still remembers the terror of being under his thumb!

World Government: You fear his unparalleled scientific genius, but we're even more terrified of his own overwhelming strength!

Satan: I hear people are talking about me? Come on, I'm just an utterly ordinary scientist.

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