Prince Sheng Yunhe of the Xia Kingdom made a secret visit to the Yuan Kingdom, and unexpectedly had an affair with Mu Zheng, the second daughter of the Mu Mansion, and they had several entanglements. Mu Zheng was plotted by her family and was forced to marry a rich man. She planned to fight back against her sister, and was also involved in the Zhao family's conspiracy and other disputes. She once took advantage of Sheng Yunhe, and later rescued him when Xiyi was in danger. After the separation and reunion, the two finally reconciled and fought against Xiyi together.
