During the Song Dynasty, when Jin Da-in, an official in the Sichuan Province, leaves an ominous prophecy on the Shangyuan Festival and falls to his death from a pavilion, the entire capital, Biancheng Province, is gripped by anxiety. Po Zheng receives an imperial order to solve the case within three days and begins his investigation. "When the Twin Fish Jade Tablet appears, the Mirror Man will come to life." Amidst the conflicting testimonies of countless witnesses, he struggles to find the right clues. Yo Eon, the leading courtesan in the Chwiseonru Pavilion, emerges as the center of the case. Unraveling his own questions one by one, once upon the third day, the last day of his term, he discovers that the Sichuan Province Jin Da-in case was a plot by the White Lotus Sect to overthrow the Song Dynasty. He then points out the mastermind behind the plot before the emperor... Will Po Zheng uncover the truth behind the Jin Da-in case?
