As we journey through a demon-haunted Taishō era Japan, we have an enigmatic encounter with the very-still alive Rasputin, do battle with the Marquis of Hell, and are forced to turn down an offer to let a corpse army kill the rich. Meanwhile, we learn more about the enigmatic red caped figure and learn more about the curse befalling Kaya Daidōji.
We jump back to the early 20th Century to join the adventures of apprentice detective Raidou Kuzunoha and his trusty talking cat. When a client in distress requests that Raidou and his boss kill her, they're ambushed by mysterious men wearing red capes who kidnap the client. Raidou is then thrust into a dimension-spanning investigation to get to the bottom of the case, but the apprentice detective has one advantage against the forces that stand in his way: the ability to summon demons.