The cute five-year-old Ruan Ningchun, as the last descendant of the Yinling Sect, is naturally psychic and can attract evil spirits. After her grandfather passed away, she was taken in by Chen Yiqing, director of the Special Investigation Division, who had a "Tiansha Lone Star" constitution. One cold and one warm, they work together to solve numerous mysterious cases of the Republic of China. From the revenge of the cat spirit to the death of a ghost marriage, from the horror of witchcraft to the disappearance of the blood corpse, Xiaochun repeatedly solves strange cases with his supernatural powers, accumulates merits, and quietly reverses his mortal destiny as a "real daughter of cannon fodder". On this growth path full of tenderness and thrills, she not only became the team favorite of the Investigation Department, but also redeemed each other with her brother Chen Yiqing, becoming a glimmer of light that illuminated the dark era.
