Yun Qianyue, the legitimate daughter of the Hou Mansion, lost her mother when she was young and lived under the shelter of others, surviving cautiously in the crisis-ridden Hou Mansion. Faced with the frame-up of the concubine Liu Ruyan, the plot of her aunts, and the control of the old lady, she gradually awakened, from the initial forbearance to the later counterattack. She used her wisdom and talents to skillfully resolve the crisis and uncover the conspiracy hidden in the Hou Mansion step by step. While getting along with Gu Changfeng, the prince of the Hou family, the two gradually developed feelings for each other, and he became her most solid support. In the end, Yun Qianyue not only avenged herself and her mother, but also changed her fate in the Hou Mansion. At the same time, she also revealed the sorrow and struggle of women in feudal society.