In a realm where magic, once a privilege of the elite, has proliferated, causing a surge in criminal activities, the Imperial Kingdom initiates the Magic Crime Investigation Bureau. Assigned to tackle Witch-related incidents, a detective faces the challenge of managing enigmatic and perilous women whose abilities are constrained by specialized restraints. Among these intriguing figures is his cunning Witch cohort, known as the enigmatic Demon Doll, urging him to wield his authority and crack a case through the manipulation of magic, despite the repercussions on the suspect's psyche.