Jingyue, the top one girl at Qinglou Zuiyue Royal Academy in Chang'an, dies in a fire. What is supposed to be an unsurprising case alarmed Yang Wenxian, the Eunuch of Shen Ce Army. Pei Jun of the Dali Temple (Court of Judicature and Revision) asks his friend Su Yannan to help investigate the case. Su discovers that there is a bigger conspiracy behind this.