In a chaotic world where humans and demons coexist in endless conflict, the ruthless Demon King Xu Heng is betrayed during a royal banquet and left for dead. Gravely wounded, he escapes into the mountains—only to be saved by a strange human boy, Shu Ziyan, someone who barely cares whether he lives or dies. Bound by fate, a story of power, betrayal, obsession, and redemption. where two dangerous souls become each other's only salvation.