You Were Told to Guard the Demon Realm, So How Did You Become the Demon Sect's Holy Son?

From the start, he is driven out and thrown into the Demon-Suppressing Domain. He plans to lay low for three to five years.

After demonic energy enters his body, he becomes a once-in-50,000-years iron-willed cultivator,

and receives a god-tier golden finger: purify and devour!

Demon General: "What happened? Why doesn't my demonic energy feel demonic anymore?"

Great Demon King: "How does he know a secret art of the demonic path?"

Lord of the Demon Domain: "The demon world needs a Holy Son. I think you're perfect for the job!"

Lord of All Realms: "Congratulations! Your merit is boundless. You have received the power of faith!"

He roams through all realms. So, am I a divine messenger or a demon?

I am myself. I am the rules!

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