Shen Zhiheng, the heir to the business empire, and Su Qingyuan, the daughter of a declining aristocrat, were forced to marry due to a family crisis and signed a three-year contractual marriage. The two had never met before the marriage, and they had their own thoughts after the marriage: Shen Zhiheng needed the connections of the Su family to stabilize the inheritance, while Su Qingyuan wanted to use the resources of the Shen family to restore the family's glory. They live under the same roof, but they are strangers to each other. Their words are thorny, and every sentence hides their wits. They only talk about the exchange of interests in everything, without any warmth. However, in business games, family infighting, and unexpected crises, the two were forced to join forces, taking advantage of each other but inadvertently peeking at each other's fragility under the hard shell. From the initial tit-for-tat confrontation and mutual calculation, to the gradual revelation of true love in temptation, this marriage that started with interests will eventually blossom into the unexpected flower of love in the heart-piercing pull.