One Piece: King of the World - Chapter 2 - : My Predecessor Was Mentally Deficient?

“If you had E-class or F-class skills, history would have changed.”

Jung-woo Jung, a hero who has everything except ability.

Then the world gave him unlimited power.

Octavius, misled by friends, embarks on a quest to clear his father's name, ultimately facing a tragic end with his sister.Their journey results in devastating loss, leaving him powerless and yearning for revenge against those who harmed his family. Spirits offer him a chance to reincarnate, but he refuses, saying;“What’s the point of a new life if I keep running from my problems”The entities are taken aback by his unwavering decision, having never encountered a spirit who refuses to escape their troubled past. They warn him about the evil being that now resides in his old body, but that only motivates him. He believed In the saying - to defeat a monster, you have to be twice as monstrous.Embracing his fate as The Phantom's Gambit, they traverse the shadowy path of retribution, their identities blur, secrets unravel, and the line between savior and monster fades.This is a tale of darkness and redemption, where justice is a blade, and revenge is the only way forward.

“Blue Star 4.0 will begin its maintenance-free update at 12:00 AM on April 1st. The main content and adjustments of this update are as follows.” “New monthly rule ’Active Talent’ added: All players must converse with others for a total of 1000 sentences every day...” When an abrupt notification sound echoed in the ears of all humans on Blue Star. The world faced its cleansing. In every monthly version update, a new rule would descend, which all players had to obey. ... Chen Yi, who had found a massive loophole before the third version update, looked at the six-figure Points Balance in his account and broke into a grin. “Tuberculosis Rabbit, this time we might just rise to the top.”

An 18-year-old poor college student tried to apply for a job as a tutor but his life almost ended as demons' meal. In his last breath, a mysterious woman gave him a strange power. When he opened his eyes he had turned into a demon with a system that would turn him into… A pervert.

Now he must lived with his dual identity as a model student named Ethan and an incubus named Damian.