The story originates from a young man working in an antique bookstore in Peking who accidentally compiled a set of mysterious manuscripts called "Tianhuangchen Video Record". The author of the manuscript is a legendary figure who was very famous during the Republic of China but is rarely mentioned in official history - Yan Ke. He is not only an elegant collector, but also a newspaper writer, and a secret recorder who travels between the streets and high courts, personally witnessing and recording all the unexplainable wonders of this era.