Qin Ming, who is good at mecha deception, was asked by Bai Qi, who is good at solving puzzles, to be a Jinwu Guard and a firefighter of the Pihuo Division. In the Leihuo case, he met Jing Yifei, the "number one sister" of the Bingmasi. The three of them formed a detective team. They not only had to unravel the layers of fog, but also understood their own life experiences, as well as the responsibilities and significance of being a Jinwu Guard.