Adrian Kaiser von der Pfaltzgraff was the only child of Pfaltzgraff family. The devil has taken over his body since he was born, so in order to survive in a mortal body with his devil powers, he has to kill people. In order to survive, he kills servants, criminals and anyone who annoys him. but one day when he kills a servant, you see him so to shut your mouth he asks you to cooperate so that it would be easier for him to kill people without being caught in the future.