After getting drunk, Ouyang Xingxing mistakes her one-night stand with Wei Bufan for a steamy dream, while her best friend Yulan assumes her identity. Seven years later, both divorced, the two conceal their wealthy identities when they meet on a blind date and impulsively marry, forming a family with their children. When Ouyang's factory faces a crisis, Wei Bufan reveals his identity as a CEO to help her, only to face opposition from his mother. Her ex-husband exposes that her son is not biologically hers, and the truth comes to light: Wei Bufan was the man from that night, while Yulan stole a daughter and married into the Wei family. DNA testing confirms that the boy and girl are biological siblings. The couple reunites, and the villains receive their punishment.