A 27-year-old programmer is unexpectedly visited by a mysterious fellow disciple, who reveals his true identity as an heir to Daoist medicine. Guided by his fellow disciple, he discovers his grandfather’s ancient Daoist medical manual and a set of special needles, setting him on a path from ordinary office worker to inheritor of Daoist medicine. In the modern cities of the Lingnan region, he uses the I Ching and Eight Trigrams to diagnose illnesses, talismans to ward off evil, and special needling techniques to handle all kinds of supernatural medical cases: from the truth behind a bout of homesickness to hereditary family maladies, from hauntings in shopping malls to campus ghost stories, and from curse magic to people raising ghosts to harm others. As everyday supernatural cases unfold along the main storyline and he explores the secrets of his inheritance in the background, a heartwarming story about passing down traditional culture and bringing it into modern life gradually takes shape...