A sixteen-year-old girl died suddenly, with fox claw marks wrapped around her neck; the corpse of a pregnant woman surrounded the altar, and the ghost blood poison gnawed at the vitality. Bizarre murders occurred one after another in Qingqiu Town. Miss Su, the Taoist priest who was responsible for the murder of the family, followed the traces, but found that all the clues pointed to the murder ten years ago.
During the investigation, the soul-eating fox self-destructed, the ghost blood poison caused trouble, and the mysterious old man in fox fur and the elder Qingqiu who fell into the evil way appeared one after another. Miss Su holds half a jade pendant that resonates with the sacred objects of Qingqiu. With the help of Aman from the Miao village, she gets closer to the truth of Xuyuan step by step. However, what awaited her at the core of Xuyuan was a dark shadow that was 70% similar to herself, and the "Yin Yang Gu" that could subvert Yin and Yang. Conspiracy and truth are intertwined, and strength and obsession confront each other. Can Miss Su solve a thousand-year mystery and protect the balance of the world? A grudge that spans thousands of years and a thrilling journey to eliminate demons begins here.
