During the Xuanhe era of the Song Dynasty, constable Zhang Xian stumbled upon a minor case involving stolen nails. He never imagined it would bring him a death sentence. On the night he pursued the culprit, he died an unnatural death. Fortunately, an enigmatic old Taoist came to his rescue, bringing him back to life. As he investigated the case, Zhang Xian sensed something deeply uncanny about it. It was also connected to an experience he had kept secret for years. He went on to face nine brushes with death and thirteen calamities, including capturing the Black Fish Spirit, subduing the White Wolf God, accidentally rescuing the prefect's son, studying thunder magic, playing three tricks on a fox immortal, and battling the Four Spirits.
