This drama tells the story of an investigation agency called "All Fields Abnormality Solution Room" solving "unexplainable abnormal events" that cannot be found by modern events around us and the most advanced scientific investigations. The objects of the incidents are "all fields", "paranormal phenomena" such as "disappearance of gods", "shadow people" and "fox possession", etc., challenging "abnormalities" that cannot be thought of with the common sense of modern science.