On a rainy night, Su Wan knelt in front of the most noble man in Shanghai in order to save the ancient architectural studio left by his father.
Lu Jingshen, the leader of the Lu Group, the cold-faced King of Hell in the business empire. He handed over a contract: "Fake marriage for one year, and I will pay off your debts. Condition one: Act as the perfect wife; Condition two: Sleep next to me."
Everyone said that Su Wan was just a stand-in - so much like Lu Jingshen's mother who died young that he could get this honor.
She abides by her duties and plays the role of a docile contractual wife. However, while restoring the old Lu family house, she unexpectedly discovers a hidden secret: the cause of Lu Jingshen's mother's death was mysterious, and her father's name suddenly appeared on the edge of the files from that year.
When a business rival set up a trap to frame him, Lu Jingshen treated him coldly in public: "Miss Su, please explain."
Su Wan was disheartened. On the night of packing her luggage, Su Wan saw in the secret room of the study - the repair sketch she had drawn casually, which he had carefully sealed and preserved; the tangerine peel candy she loved to eat when she had hypoglycemia was always in his drawer; and the back of the cufflink left by her mother was engraved with two very small words: Wan Wan.
"It turns out the contract was fake," she smiled bitterly, "The heartbeat is real."
Lu Jingshen pressed her against the carved door leaf of a century-old house and said in a hoarse voice, "Do you understand now? Su Wan, I have never been a gentleman - from the second you ran into my arms, I had no intention of letting you go."
However, when the old grievances between the two families surfaced, and when a well-planned kidnapping pushed the two to the brink of life and death, they discovered that this marriage that started as a transaction had already happened with countless people in the same family.
