The story follows the intriguing adventures of an enigmatic young girl, assisted by a religious novice and a demon who is a doctor. Together, they find solutions to human problems and heal ailments caused by demons and spirits. The term "novice" refers to a person who has begun his or her religious training, but is not yet a full-fledged monk. In addition, a "demon" is generally considered to be an evil supernatural being, but in this context it's more a complex character who helps humans despite his or her demonic nature.