Shengxia (played by Li Xiaoran) is a female doctor who is one in a hundred, with superb IQ and strict logic. Under the threat of genetic diseases, she, who has always had a blank emotional life, finally began to seriously consider her lifelong event. Qiu Yang (played by Yu Hewei), a company executive, had two failed marriages and encountered an economic crisis in the company. Under the pressure of his family, Qiu Yang planned to start his third marriage. It was just like this that two people who seemed to have nothing in common became neighbors by chance. One of them was eager to marry, and the other was eager to marry, so the two hit it off and both entered into an absurd contractual marriage. In the noisy daily life, the black and white clauses gradually turned into an irrepressible expression of true feelings.