“Demonic cult remnants must all be exterminated! I, Leng Qingqiu, swear that I will cut the Demon Venerable Shen Jue into a thousand pieces!”
Shen Jue transmigrates as the leader of a demonic cult. He expects the righteous sects to besiege him, but discovers that the Heaven-Devouring Demonic Art he cultivates has mutated.
Not only does it emit no demonic aura, it can perfectly imitate every righteous cultivation technique. Even the demon-detecting stone can't sense a thing.
To devour the righteous sects' treasured heirlooms, Shen Jue takes the alias “Shen Lang” and joins the foremost righteous sect.
“Senior Sister! Shen Lang drained the inner energy of three elders with a single palm strike. He used a demonic art!”
Leng Qingqiu kills the accuser with a single stroke of her sword. “Nonsense! Junior Brother Shen used the long-lost Northern Darkness Divine Art. He's a beacon of righteousness!”
Then Leng Qingqiu presses the sect's supreme treasure into Shen Jue's arms. “Junior Brother, there's a mole in the sect. I can only feel safe if I entrust this treasure to you.”
Shen Jue nods gratefully, then turns around and devours every last bit of the treasure.
Three years later, during the war between the righteous and demonic factions, Leng Qingqiu leads the righteous sects in an assault on Blackwood Cliff, the demonic cult's stronghold. But she finds the cult members bowing in reverence to a young man in white.
The man turns around. It is none other than Junior Brother Shen, the person she trusted most.
Leng Qingqiu's eyes burn with fury. “Shen Lang! How could you betray the righteous path?”
Shen Jue spreads his hands helplessly. “Senior Sister, I was the Demon Venerable all along. You're the one who insisted on bringing me into the righteous sect. But never mind. From now on, both the righteous and demonic factions answer to me.”