In order to lift the family curse, Lin Xi, the last descendant of Guanshan Taibao, entered into a one-year contract marriage with Fu Chengyuan, a Hong Kong tycoon who holds key clues. A secret map that needs to be protected by the other party for generations, and a lost skill that covets the other party's ability to explore caves and find dragons. It was originally a stop-gap measure with different motives, but the two relied on each other for life and death in the process of exploring the thousand-year underground palace and cracking the life-threatening mechanism. When the truth of the strange curse is revealed, implicating blood debts and betrayals a hundred years ago, the "collaborators" who once looked at each other coldly have become the only ones who can take responsibility in desperate situations. The one-year period is approaching, deep in the underground palace, she initiates the final ceremony with a body sacrifice, and he tears up the contract and holds her hand tightly: "My life and heart have been yours for a long time. Mrs. Fu, this time, we sign for life."
