Devouring Billions of Demons' Lifespans, I Am Immortal

[Longevity] [Passionate Fantasy] [Leveling Progression] [Decisive and Ruthless] [Slaying Demons and Exorcising Evil] [System] In the Great Yin Dynasty, the royal house is in decline and demons run rampant. Chen Fan transmigrates into the lowest-ranking position in the Demon Suppression Bureau: a night patrol guard. His colleagues are dying horribly, his superiors bully him, and the law has collapsed. Driven to the brink, Chen Fan is left with no way out. Fortunately, he awakens a devouring System that lets him consume demons! Devour a demon core and seize its supernatural ability! Plunder a demon's lifespan and defy fate! Conquer myriad demons and forge an army of his own! From then on, every demon beneath his blade becomes nourishment, raising him from a humble guard to the “Devouring Heaven Demon Lord,” ruler of all demons. He goes from an ordinary human to a mighty practitioner with supernatural powers and endless life. The Demon Suppression Bureau brands him a traitor, and the martial world calls him a fiend, but standing atop a mountain of corpses, he sneers: “In this world that devours people, if we cannot use demons to devour demons, how can we protect the human realm?”