He, Kong Tong, was originally an expert in historical archaeology, but he once traveled through time and transformed into the Emperor with Duan Sleeves whom he hated most. A historical injustice case involves royal secrets. It turns out that the truth is far crueler than history. The closer he gets to the truth, the more confused he becomes. What is the truth? Is the person that Emperor Duanxiu really loved the traitor Tongxian as recorded in the history books? Why is there no record in the history books that Wang Hong, a famous Langya scholar, was the Duanxiu Emperor's companion? Is Wang Hong's loved one Kong Tong or the vanished Emperor Duanxiu? Where should he go when the truth is revealed?