Luo Daizhu traveled through the Tang Dynasty and was rescued by a couple in Luo City. They treated her as her own. From then on, Daizhu valued the Luo family more than her own life. The eighth prince Li Cang is lustful and cunning, and he covets Luo Qingcheng, the second sister of Dai Zhu, the most beautiful woman in the world. In order to save her second sister, Dai Zhu holds a moon-viewing family banquet to choose her son-in-law.
At the banquet, Daizhu met Ye Shengqiao, a wealthy son of Chang'an, and Wu Qingyu, an arrogant and arrogant young prince. Ye Shengqiao and Qingcheng fell in love at first sight, but abandoned Qingcheng under Wu Qingyu's advice. Daizhu was angry and resentful of Qingyu, and tried every means to oppose him. However, Wu Qingyu gradually fell in love with the lively, kind and intelligent Daizhu, and proposed marriage to the Luo family, but was rejected by Daizhu.
Li Cang ordered someone to trick Dai Zhu's sister Yingzi into eloping. Wu Qingyu worked around it, rescued Luo Yingzi, and saved the Luo family's face, which made Dai Zhu change her mind about him. However, she also discovered that what Li Cang was determined to win was never Qingcheng, but Dai Zhu...