I Practiced Demonic Arts for a Hundred Years, and Emerged Invincible

In the final years of the dynasty, treacherous men hold power, and demons and monsters wreak havoc.

Chen Xi transmigrates into this world and unexpectedly awakens a modified version of a life-burning golden finger.

On top of burning his lifespan to slay demons, he gains the ability to [Transmute Evil], reversing the negative effects of cultivation techniques and treasures, turning the rotten into the miraculous and allowing him to wield forbidden power!

What? You say cultivating the Soul-Seizing Finger reverses your blood flow and makes it feel like ten thousand ants are gnawing at your bones? I'll use it on myself twice first!

What? The more you master the Seven Wounds Fist, the more it harms you? Then I'll practice the Hundred Wounds Fist!

What? The Poisonheart Body-Tempering Art requires drinking the world's most lethal poisons, leaving your life hanging by a thread? I'll just draw the poison into my own body and drink poison and hemlock like water!

"Immortal Emperor, there's a demon in the lower realm acting outrageously. Shouldn't we..."

"It doesn't matter. He cultivates demonic arts, so he won't live a thousand years."

A thousand years later.

"You're that demon from the lower realm? How are you still alive?"

"Go to hell! How dare you curse your Grandpa Xi! You old Immortal Emperor, behold my mighty Dragon Strike!"