A brain-burning and suspenseful detective novel, it tells the story of a cult that has arisen in the city and has deluded people and caused unrest in society. Police officer Wen Lisi and Onmyoji girl Yu Xiaotian work together to uncover the hidden conspiracies in the city, battle wits with cult murderers, and the mystery of Yu Xiaotian's life experience that she has been pursuing.
