The Shen family of the Jiangnan historian impeached the Gu family for rebellion and was wiped out. The young girl Shen Zhaoning escaped by chance and lived in anonymity for ten years. With her gift of photographic memory and the historian's notes left by her father, she passed the imperial examination for the first female historian in the Qi Dynasty and entered the palace. Using her duty to record the emperor's words and deeds as a shield, she secretly collected evidence that Gu Wantang framed the family. In the process, she started a battle of wits with the suspicious emperor Xiao Jingheng - not only to prevent the emperor from tampering with the records, but also to use his power to expose Gu Wantang's vicious heart. From the secret investigation in the cold palace, interception of secrets in the study, to the design to make Gu Wantang expose his crimes, Shen Zhaoning used his "pen" as a knife, step by step to reveal the truth about the family extermination in the sun, and finally brought down the Gu family, cleared the family's grievances, and became the most frightening "living history book" among the powerful in the court.
