Jiang Yu, a modern judicial officer, traveled through time and became a country businesswoman. She was betrayed by her husband, Qi Yuanhong, and forced to divorce. She revealed her identity as the legitimate daughter of the Duke of Chu, recovered the dowry, exposed the scandal between Qi and Su Yuezhen, investigated old family cases after returning to the capital, fought against powerful people, refused the King of Qin's request to marry a female official, investigated the corruption of King An, and prevented him from regicide and seizing power. In the end, she helped the King of Qin succeed to the throne, became the queen herself, and protected the country with him.
