After being relegated to the cold palace for seven years, Shen Zhaoning tore up the imperial edict, overturned the imperial list, and established herself as emperor as a woman. Pei Jin, the former commander of the cavalry, was ordered to conquer, but he hesitated to raise his sword in the bloody battle; Xie Wanrong, who was planning secretly, paved the way for her, and the unconventional female judge Su Yanqiu legislated for her, while the prince Xiao Jingheng and the Beidi protégé Yan Wujiu each harbored shocking secrets and set up schemes step by step. When the dragon robe was stained with blood and all the people knelt in worship, she realized that what she really wanted to overthrow was not only the imperial power, but also the "women are not kings" engraved in their bones for thousands of years.