Within a Hollow Heart - Chapter 44: Volume 1, : "A Fragile Victory"

What if you could hack the strongest heroes and turn them into your devoted companions?Once feared as the Heavenly Demon, Zain stood above all—unstoppable, unrivaled, unchallenged.But his reign came to an end when so-called righteous cultivators banded together to eliminate him, believing they had purged the world of its greatest evil.Yet death was not the end.Reborn in a world dominated by heroes and champions of justice, Zain awakens a mysterious Hero Hack System—a power that doesn’t just defeat heroes but rewrites them.With a single command, he can shatter their convictions, twist their destinies, and rebuild them into something new.A ruthless warrior queen? Now a loyal blade at his side.An untouchable holy maiden? Now eager to obey.The strongest hero who once stood against him? Now kneeling before him, waiting for his command.With every hero he hacks, his harem of once-unshakable warriors grows. But as he reshapes this world to his will, one question remains—who gave him this system, and what price will he have to pay?They ended his reign once. This time, he’ll reign over them all.

The demon Sang Jiuchi woke up from a seal and found that he was bound to the Quick Transmigration system, and the characters he took over were all without exception, the worst villains.

Blackmailing the top streamer but ended up killing his own despicable tech genius…

The vicious true young master who framed the fake young master but suffered the consequences…

The murderous master who humiliated his apprentice but was killed…

The sinister mermaid who seduced the general and was slaughtered…

The hypocritical pope who deceived people and was burned at the stake…

- Description from Novelupdates

Wang Sheng arrives in a world sealed by qi, where danger lurks at every turn. Fortuitously, he awakens a progress bar that can break through all limits, turning everything into possibility!Inner Core Skill—Refine essence into qi, the fundamental path, eternal void, achieving true immortality!Ba Duan Jin—Constructing the foundation, limitless qi and blood, rebirth from a drop of blood, the flesh becomes sacred!No Life True Void Induction Sutra—A virtual world, infinite simulation, the name of No Life, spread across all heavens!Heaven and Earth, the Ages—Control of time and space, reversing life and death!...The true immortal watching the winds and clouds is me, the No Life True Saint representing transformation is me, the one who controls time and reverses life and death is me, the one using the true vacuum homestead to harvest all realms is also me!--------------------This is a story of Wang Sheng basing on Ba Duan Jin as the foundation, using Inner Core Skill as the fundamental method, achieving everlasting life...

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)