In the year 24, a secret scientific institution in Daxing, Beijing, successfully established a time-space passage to the late Qing Dynasty and conducted observation experiments. Chen Yixuan, an unrelated person, was simultaneously transported to the late Qing Dynasty without the knowledge of the scientific institution and started fighting in another world. By chance, the two parties knew each other, and Chen Yixuan was also informed that he was a time traveler. The rules that should be followed, and scientific institutions require Chen Yixuan to protect those precious historical relics for the future of China as much as possible without affecting the historical process without affecting the historical process. Therefore, Chen Yixuan began his journey to save the Forbidden City with the limited help of scientific institutions.