Introduction: Qin Ming, who is skilled in mecha deception, is recruited by Bai Qi, who is good at solving puzzles, to become a member of the Imperial Guard and a firefighter in the Fire-Breaking Division. In the Thunderfire case, he meets Jing Yifei, the "top sister" of the Military Command. The three form a detective team, which not only has to unravel layers of mystery, but also learn about each other's backgrounds, as well as the duties and significance of being Imperial Guards.
