"Say it. Give me the order. Tell me to cast magic on that man. Just one word. His mind will shatter, but the case will be solved!"

Fantasy Action set in a world where magic - once exclusive to the aristocracy - has become widespread, leading to a sharp increase in crime. In response, the Imperial Kingdom established the Magic Crime Investigation Bureau. One of these detectives is tasked to handle all Witch-related cases. But it's not easy dealing with these charming but dangerous women whose powers can only get restricted by special collars. Women like his wicked Witch partner, the so-called Demon Doll.