The deposed queen Shen Zhaoyue transformed into a crazy concubine, but used history books as a blade to tear open the bloody mask of the Yin Dynasty. The Mad Emperor Xiao Huaijin laughed at her for being crazy, but he gradually grew fond of her as he listened to her talk about the past of the country's subjugation every night. The poison of the mute maid Liu Ruyan, the cavalry of the female general Chu Zhaoning, and the prophecy of Yun Gu in the library are all pawns in her hands. When she used "Zi Zhi Tong Jian" as a plot to overthrow the prime minister with her crazy words, when the mad emperor tore off the mask of madness and declared to the world with a bloody edict - who is the real master of destiny?