During the Kangxi period, in an ordinary village in Qiongze County, a doctor named Yan rescued a young man who was wandering in the world. After learning about this young man, he turned out to be a Manchu nobleman from Beijing. Naturally, Langzhong Yan felt that he was not destined to be the man, but his daughter Ruyu fell in love with him at first sight and became engaged to each other for life. This must have become news in that traditional village. What was even more unexpected was that after waiting for a year, Ruyu found out that her lover turned out to be Kangxi's thirteenth prince. Ruyu fell into a painful self-struggle, not knowing whether to leave him or keep pursuing this relationship...