Lu Chenzhou, the “Lord of Hell,” was once the king of the underworld. Betrayed by his brothers, he was gravely wounded and lost his memory, becoming a live-in son-in-law brought into the Lin family of Jiangcheng to bring good luck. His wife, Lin Weiyue, seems frail, but is actually the secret queen “Queen,” who controls the global economy. Amid humiliation and probing from all sides, their secret identities are gradually exposed. From mutual suspicion, they grow to trust and rely on each other, forming the strongest alliance. They discover that Lu Chenzhou's amnesia and genetic mutation are connected to the “Pandora” key coveted by an ancient organization called “Divine Throne.” To uncover the truth, the couple takes on “Divine Throne” across the globe, fighting to the death on multiple battlefields, including finance, technology, and supernatural powers. In the end, they discover that “Divine Throne's” “life evolution” plan is really a scheme to destroy the world, and that Lin Weiyue's still deeper hidden identity is the ultimate key to determining the course of this evolution. Together, they defeat “Divine Throne,” redefine the meaning of power and protection, and create a new order of their own.