Qin Shanglu, the head of the Qin family, was frail and sick, and doctors said he would not survive until his thirties. Lu Chaoyan, the second young lady from a family of Western medicine, has acquired traditional Chinese medicine skills that are not recognized by the Lu family. In order to overturn the case of his uncle who was wrongly imprisoned, Lu Chaoyan became Qin Shanglu's personal doctor, and used his power to fight wits and courage with the Lu family, and finally succeeded in clearing his uncle's grievances. The two also developed feelings for each other in their daily interactions. One day, Qin Shanglu asked Lu Chaoyan, "I have a problem, I like you, I don't want tea, I don't want to eat, what's the explanation?" Lu Chaoyan prescribed it - Chaoyan is a medicine that can be taken for a lifetime to relieve lovesickness.
