The civil servant Sui Zongwei was framed by an adulterer. His two daughters, Sui Li and Sui Shi, were originally from a wealthy family, but now they face a shattered fate. Prime Minister Zuo Ningzhang's evil deeds were exposed. In order to protect his daughter Zuo Tang, he secretly exchanged her with Sui Shi. From then on, their fates diverged. Sui Shi wandered around the Goulan Fireworks Tower, while Zuo Tang grew up in the majestic General's Mansion. Many years later, the emperor became seriously ill, various forces intrigued each other, and murders occurred frequently in various places. During the process of solving the case, Jin Shenyu discovered that a seemingly simple case was brewing a shocking conspiracy, and things back then were not that simple. Although he encountered resistance from all sides, Sui Shi was even persecuted continuously. Can they break out of the confusion and seize the truth?