The genius girl Qin Yuxin transforms into the cannon fodder princess in Gong Dou's storybook. The Emperor of Great Xia was unexpectedly able to hear her voice, and because her birth coincided with the rain falling from the sky to alleviate the drought, he regarded her as a lucky star and loved her very much. With the voice of her heart, Qin Yuxin exposed the conspiracy of the midwife, and also made the Emperor of Great Xia predict that she would be betrayed by the fourth prince and beaten to death by King Lin, thus firmly tying the emperor's favor. She successively resolved the crisis when the prince was framed and herself was assassinated, and put Concubine Liu into the cold palace. Prime Minister Cao's repeated plans for Dingguo Hou Mansion, the prince and Concubine Xian all came to nothing because of her wishes.
