In a world where history can be tampered with, the History Survey Department of the Dayuan Dynasty monopolizes the right to interpret all history books. Young editor Lu Mingyuan questioned orthodox history and accidentally discovered a "green slip" that recorded the erased truth during the book-burning operation of the Department of History. He was involved in an adventure that subverted cognition.
In order to pursue the buried truth, Lu Mingyuan formed an alliance with Huo Qingfeng, an exiled veteran who was persecuted by the History Department, and Situ Wan'er, the daughter of a smart and astute merchant, and embarked on an arduous journey to find the scattered green slips. At the same time, Cao Wuying, the chief pursuer of the Department of Exploration and History - Lu Mingyuan's former senior brother - pursued them closely, vowing to maintain the "purity" of history.
In the process of pursuit, they gradually uncover a shocking secret: the foundation of the current dynasty is built on a huge historical lie. The ancient organization "Night Watch" hidden behind the Department of Survey and History has been secretly manipulating the trajectory of history for a certain purpose.
Faced with "happy lies" and "painful truths," Lu Mingyuan must make a choice: reveal the truth and shake the foundation of the dynasty, or maintain a false peace? When the three green slips resonated at the dynasty's heaven-sacrifice ceremony, and the true history was displayed before the eyes of all people like a picture scroll, the collapse and reconstruction of an era began at the same time.
Purpose: When the world is built on lies, pursuing the truth becomes the most complete rebellion.