As the Demon Lord, I Became Invincible Starting as a Heavenly Prison Guard

What happens when the most powerful Demon Venerable in history gets bound to a [Villain Redemption System]?

System: [Ding! Host, please save the sect on the brink of destruction!]

Li Jiuyou: Got it. I'll take over the sect and become its leader.

System: [Ding! Host, please protect the heroine blessed by fate from danger!]

Li Jiuyou: Understood. I'll kill everyone who threatens her, then refine her into my most loyal demonic servant.

System: [Host! That's not how you use merit points! You're going down the path of demonic cultivation!]

Li Jiuyou gave a sinister smile, gazing at his supreme demonic body, enhanced without limit by "merit points."

"Shut up. Your so-called merit is nothing but fuel for my return to the peak. And you... you're just another pawn in my hand."

Starting as a Prison Guard in the Celestial Prison, I Became Invincible as a Demon Venerable: Tricking the System and devouring all worlds, now that's how a Demon Venerable gets "redeemed"!

Click to read and see how he toys with "justice" in the palm of his hand!