To help solve his cases, Detective Akutabe summons demons to do his dirty work. But even as powerful as Akutabe is, manipulating demons is a delicate art. His new part-time employee, young college girl Sakuma, gets minimal time exploring the finer points of controlling demons before Akutabe forces her into a demonic contract with the lazy, lustful, and depraved demon Azazel. To control him, Sakuma may have to dabble in a little depravity herself.