Su Qing, a young man from a family of traditional Chinese medicine, inherited the ancestral "green bag" and the "treasure bag" that can collect monsters and cure diseases. He can see "disease monsters" that ordinary people cannot see - these spirits lurking in the world and causing various diseases are the real root causes of many difficult and complicated diseases.
However, in modern society, Su Qing's treatment method is regarded by most people as a trick of pretending to be a ghost. He not only has to deal with patients' doubts and regulatory scrutiny, but also has to deal with various disease monsters lurking in the shadows of the city. As the plot unfolds, behind each case of bulimia caused by "gluttony" and depression caused by "melancholy", there is a greater conspiracy hidden - some powerful monsters are trying to subvert the balance between humans and monsters by manipulating diseases.
