A 1970s wrong-at-birth story. Lin Nian suffered in the countryside since childhood and was taken back by the Lin family at age fifteen. Initially, all four of the family's outstanding brothers favored the fake young lady raised by their side. After seeing through the fake young lady's true face, the entire family went crazy doting on their biological younger sister, Lin Nian. With a clear-headed mind, the female protagonist seized the opportunities of the times to do business, leading her family to live an increasingly better life.