The sensational comic adaptation of the prize-winning masterpiece from the "Edogawa Ranpo Prize"! Torii, a genius salesman who is always the top performer at any company, encounters a hitman while visiting a client one day. In the moment his life is about to be taken to silence him, what Torii begins to say is――. A natural-born devil tramples through the underworld filled with monsters! A jet-coaster mystery that overturns your common sense, begins!