In the great cause dynasty, the country is peaceful and the people are safe. Under the prosperous times, undercurrents are surging. Xiao Yanci, the clerk of the Imperial Academy of History, a young historian who only believed in black and white words and pursued textual research throughout his life, accidentally discovered an unexplainable contradiction when sorting out the old files of the previous dynasty: a general who had great military exploits and was supposed to die in battle was actually changed in the historical data to say that he died of illness a year later. This tiny doubt, like a sharp thorn, pierced into Xiao Yanci's belief in "truth". He began to investigate, but found that what he was facing was not a simple falsification of historical data, but a mysterious force that could tamper with history and weave destiny - the "Fate Weaver". They hold the "Spring and Autumn Shuttle" in their hands, and in order to maintain the stability of the dynasty, they do not hesitate to erase the truth and reconstruct the past. As Xiao Yanci stepped closer to the core, he discovered that his mentor, colleagues, and even the peace of the entire empire were tied to this huge lie. He saw that behind the tampered truth was a bloody future that could overturn the world. Should you choose to expose lies and plunge the empire into turmoil, or become the guardian of lies and bury the truth with your own hands? Xiao Yanci, holding a history pen in hand, discovered for the first time that what was written was no longer the past, but the future, life and death of countless people.