Song Muyu supported Li Jingwen in his studies for three years until he became the top scholar, but Li Jingwen hooked up with Bai Yanran and carefully designed for Song Muyu and Bai Yanran to "get into the wrong bridal sedan chairs", so Song Muyu married in her place into the Prince of Zhenbei's residence. She settled old accounts in public, smashed up the Li family's bridal chamber, tore up Li Jingwen's official credentials, and thoroughly slapped the unfaithful pair in the face. Qin Xiao, Prince of Zhenbei, suffered from a "madness" and did not have long to live. He originally only wanted a contract marriage so he could bring his mother out of the palace, but as they spent time together, he was healed by Song Muyu's intelligence and optimism and by the Song parents' open-minded protection of their daughter. After Qin Xiao recovered, the Empress Dowager and Bai Yanran still refused to give up and plotted to frame them. In the end, Qin Xiao produced the late emperor's edict passing on the throne, calmed the turmoil at court, and ascended to the throne as emperor with Song Muyu as empress.