Shen Yi, a genius scholar of modern game theory and history, accidentally traveled to the reign of Emperor Gaozong of the Tang Dynasty and became Xiao Yi, a useless side descendant of Song Dynasty Duke Xiao Yu. He was bound to the "Eternal Emperor System" and was forced to assist the seemingly cowardly Li Zhi. He started a thrilling power game with the powerful minister Chang Sun Wuji, the powerful family and even Wu Zetian, and finally pushed Li Zhi to the true pinnacle of power, and found his own way in the process.