During the Anshi Rebellion, on the day the city of Chang'an was breached, Gu Chang'an, the general of the Jinwu Guard, was hit by eighteen arrows while covering the prince's breakout. When he crawled back from the pile of corpses to the ruined Gu Mansion, he found a silk book recording Yang Guifei's true life experience in the secret compartment of the ancestral temple, and the torches of the pursuing soldiers had already illuminated the street.