Abandoned as a Spy in the Demon Sect, I Make Everyone Regret It After Taking Revenge

In a cultivation world, Gu Ling spends ten years undercover in the demonic sect.

He endures humiliation and bears the blame.

He sabotages the demonic sect's plans in secret and protects the righteous cultivators.

In the end, just as he gives his life to kill the Demon Lord, the righteous cultivators turn on him for a demonic cultivation manual!

They even dig out his sister's Supreme Dao Bone, leaving her on the brink of death.

Why?

A flame of unbridled fury burns in Gu Ling's heart!

His reason has been warped!

Just then, he binds to the Energy Conversion System. As long as he absorbs the energy of rare treasures, he can convert it into cultivation and martial arts proficiency.

From that day on, a demon even more terrifying than the former Demon Lord roams the world, leaving the righteous cultivators terrified and fleeing in disarray.

In the end, he imprisons everyone. When their memories are revealed by chance, his former friends learn the truth and regret everything.

But it's already too late!

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