The Dark Age: Infinite Lifespan and Relentless Sacrifice!

This is a dark world where magic and technology coexist, and powerful martial artists share the land with monsters!

A normal boy betrayed by his childhood sweetheart lost all hope and became lost in the demons' whispers, offering up both his soul and his lifespan.

Then Qin Zheng, from Blue Star, transmigrated into his body and took a look at his status screen.

Name: Qin Zheng

Lifespan: 25/∞

You offered up ten years of your lifespan and received a blessing: Demonic Power!

You offered up a hundred years of your lifespan and won favor: Demonic Chessboard!

You offered up ten thousand years of your lifespan and summoned a white-haired little demon!

When Qin Zheng met the childhood sweetheart who had betrayed the original owner again, she was nothing more than a destitute princess consort, begging for help wherever she went.

But he had become the Lord of Demons, the supreme ruler who commanded all demons, the librarian guarding the Forbidden Library, the founder of the Garden of Night, the forbidden source of the destruction of the Divine Realm, the Shepherd God who imprisoned deities...

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