The heroine Li Yannan is the fake daughter of the Li family. After the real daughter Li Finuo went missing 10 years ago, she was brought back from the orphanage by the Li family. She is well-fed and innocent. But after the true daughter returned, she deliberately hid her clumsiness and acted like she didn't know anything. Green tea sister Li Finuo was arrogant and unreasonable. She always caused trouble for her sister and slandered her in front of her parents. She also laughed it off. Even her fiancé Wan Heng disliked her and stayed with her sister. Over time, everyone thought that Li Yannan was unreasonable, uneducated and unskilled. He only caused trouble and bullied her sister. Finally, he was sent to the manor by the Li family. Li Yannan, who was rejected, smiled evilly and expressed her helplessness, because she was already a famous medical doctor in China and was proficient in 5 languages. She was one of the representatives of outstanding overseas students. During this period, she met Li Tingyuan, the only son of the richest man in China, who was also a medical student. The Li family lost the watermelon and picked up the sesame seeds! After leaving the Li family, Li Yannan and Li Tingyuan worked in the same hospital. They were both specially recruited special talents. They rescued the wounded and rescued the wounded, helped each other, and gradually fell in love with each other. Later, the Li family held a birthday party for Li Finuo and invited overseas partners. Li Yannan also came back to attend. There was a problem at the banquet. The overseas partners were unhappy due to cooperation issues and the translator was not around. The Li family was angry and anxious and had no choice. Li Yannan wanted to help but was insulted by Li Finuo and Wan Heng. However, Li Yannan didn't care and successfully solved the problem in fluent French. The Li family was shocked and angry. Later, the old man of the Li family fell ill and was hospitalized. When he came to the hospital where Li Yannan was staying, all the doctors could do nothing about the condition. Finally, Li Yannan was invited to be the chief surgeon. The Li family was shameless but did not want to believe it.