Feng Teng is a rich heir and the president of a giant conglomerate. He has a younger sister, Feng Yue, with a very rare blood type. Therefore, he recruits Shan Shan, who shares the same blood type as Feng Yue, into the company to be a blood donor. As Feng Teng gets to know Shan Shan, he discovers her innocence and kind heart beyond her clumsy nature, and falls in love with her.
When Feng Teng's childhood friend, Yuan Lishu returns to the country, she is dismayed to discover that Feng Teng is in love with Shan Shan. She tries to compete with Shan Shan for Feng Teng's love. Together with Feng Teng's best friend, Zheng Qi, the two tries to separate the couple by inciting conflicts.