Are you familiar with the mystery of the "Fiend with Twenty Faces"? A thief and a master of disguise, he used to steal only from the very rich. But it's been five years since he disappeared after developing a dissociative identity disorder. Now, his daughter Mayumi sets out to find him. In the process, she must find her way out of situations that keep getting more perverse and absurd as the story progresses... In this first volume of the series, Shintaro Kago offers us his take on the universe of the famous detective novelist Edogawa Rampo, one of the founding fathers of ero-guro. Kago's weirdness and Rampo's detective mysteries combine to form a world full of abnormalities and illusions!