Wen Niansheng was originally engaged to Shen Jianghan through an arranged marriage. Unexpectedly, his older brother, Shen Jinnian, was involved in a car accident and lost his memory. When he woke up, he mistakenly recognized her as his wife. Having been offered a generous sum of money by her intended fiancé, Shen Jianghan, Wen Niansheng had no choice but to play along and pretend to be Shen Jinnian's wife to keep his condition stable. While suffering from amnesia, Shen Jinnian regarded his younger brother as an imaginary rival and kept showering her with money to win her affection. However, when he unexpectedly regained his memory, he did not turn against her. Instead, he humbly begged her to stay. It turned out that beneath his cold exterior, he had secretly been in love with her all along. In the end, Wen Niansheng decisively called off her engagement and found her happily-ever-after with Shen Jinnian, the man who truly brings good fortune to his wife.