In the Wu Zhou period, Wu Zetian's imperial examination system cuts deeply into the interests of the old aristocratic families, and they set out to keep her from taking the throne. Pei Kun arrives in Luoyang, the divine city, and becomes entangled in the Chun Qiudao conspiracy. Through a string of accidents, he ends up tearing the vast plot apart. The result is a fantasy action story set against the political struggles of the age.