Shen Zhiyi, a female CEO, spends three million to buy herself a husband, Lu Chen, only to discover that he is the masked special operations agent who rescued her from a kidnapping three years ago. After entering into a marriage of convenience, they join forces to fight the business conspiracy orchestrated by her former fiancé, Zhou Chengze. A miniature lighter helps them uncover the truth behind her father's murder and the Haiqing money-laundering case. After facing life-and-death trials involving surveillance, disappearance, and a rescue at a mining site, the two move from a financial transaction to genuine trust and love. In the end, they tear up their agreement and become a real married couple. The series celebrates female empowerment and the triumph of justice.