In the Dayong Dynasty, the late emperor was deeply suspicious in his later years, and the court experienced a major case of "purging old generals." The entire Shen family of General Zhenbei was destroyed and he was accused of treason and collaboration with the enemy. Three years later, the new emperor Xiao Chengyuan ascended the throne. On the surface, the situation in the government was stable, but in fact, the old party of the previous government, the forces of the Queen Mother, relatives, and the old frontier army were restraining each other.
The heroine Shen Zhiwei, who was a graduate student in the Department of Modern Forensic Medicine, died in an accident and became the only "alive" bloodline of the Shen family when she woke up. She was sent to the palace as the orphan of a guilty minister. On the surface, she was to appease the old minister, but in fact, she was used as a bait to test the government and old cases.
The male protagonist Xiao Chengyuan is an emperor who treats her as both a chess player and a bait. He knew from the beginning that she was not innocent when she entered the palace, and he also knew that there was someone behind her. He didn't expose it because he was also using her to investigate an old situation left by the late emperor.