Chu Heng is an ordinary boy who grew up in an orphanage before being adopted by foster parents, living a carefree, unremarkable life. But when a gang corners him in a dark alley, the ancient bloodline of a Demon Lord sealed within him quietly awakens. A mysterious old man suddenly appears to save him, and a stone glowing with purple light changes his life forever.
After that blood-mark awakening, fragments of his memories begin to resurface. The Demon Lord's mark, dormant within him for years, gradually awakens as his cultivation advances. The remnants of the Demon Lord's soul, sealed away by the Immortal Alliance long ago, are scattered across the world, and Chu Heng is the vessel that bears this power.
When Chu Heng finally breaks free of mortal limitations and embarks on the path of cultivation, a storm of blood and violence sweeps through the cultivation world in his wake. The Demon Lord of his past life has returned. The young Chu Heng will tear away the facade of an ordinary life and settle the blood feud from his previous existence. In this life, he must not only protect the mortal world, but also reclaim the path to supreme imperial might.