Qin Hao, an engineering student at Modern Pheasant University who died due to love, was selected by a mysterious system and traveled through time to become a "fake eunuch" with a special identity in the palace in the late Northern Song Dynasty. It was the late period of the reign of Emperor Huizong Zhao Ji of the Song Dynasty, eleven years before the Jingkang Incident. Relying on the miscellaneous but imprecise modern knowledge, the excellent ability to observe words and emotions, and the unspeakable integrity of the body, Qin Hao started out as a prisoner and dealt with the dim emperor, corrupt courtiers, and dangerous harem. While using engineering technology to quietly enhance national power, he weaved his own secret network among the piles of powder, trying to reverse the fate of the dynasty's collapse. However, when he finally stood at the pinnacle of power and thought he had changed everything, the familiar system prompt sounded again, and the warm body beside him caused the boundary between reality and illusion to completely collapse...