He Mengyan and Zhao Xinqi are good sisters who grew up together. Zhao Xinqi comes from a wealthy family and was nurtured by her single mother. She is innocent, simple and romantic, and believes that only by working hard and being honest with people can you achieve a happy life. He Mengyan comes from a poor family and was abandoned by his parents in high school. He has worked hard since he was a child and believes that "you will win if you love to work hard" and will do whatever it takes to achieve success, no matter the cost. After entering the society, Zhao Xinqi suffered many setbacks, but He Mengyan relied on a series of tricks such as marrying into a wealthy family and using sperm to have children. One was lost in failure, and the other was indulged in wealth... But no matter how the world changes, the sisterhood is unbreakable. They stay with each other, never leave, and support each other through difficulties one after another.