After the case of the King of Hell's Treasure, Mei Yumo inherited the throne and Bai Xueqing fled the capital. A few years later, a plague broke out in Yangcheng and spread to the capital. Mei Yumo took Tong An out of the palace for a private visit. When the two were trapped in a black shop, they were rescued by a Japanese girl Qingming. On the other hand, Bai Xueqing and Qin Sanchuan went to Beijing to investigate the cause of the plague. By chance, Bai Xueqing and Mei Yumo met in a hurry... At this time, in the deep palace of the imperial city, the powerful Sixth Prince and Concubine Ren seemed to have an ulterior motive. The storm was coming, and with the infiltration of imperialist forces, the Qing Dynasty was on the verge of collapse...