"I'll show you a doll."
Due to the sudden information on the arrest of phantom thief Mubou, the great detective Akitsu Shouichirou and his assistant Komura Nozomi head to Natsuhara Hotel, where Mubou is held captive, to gather with the other 2 well-known members of the '3 great detectives'. Being indwelled by Akarumi, the hitodenashi of earthquakes and dreams, the Hotel is also called Mukyou Hotel due to the week of dreams happening once a year when the hotel itself picks out a certain number of customers and sends them into its dream realm to experience the unusual free of charge. To be recognised as Akitsu's offical assistant, Nozomi has to prove his abilities as this year's 'hotel detective' during the week of dreams and it doesn't take long until the first corpse turns up...
In a world where humans are coexisting with mysterious creatures called 'hitodenashi' the great detective Akitsu Shoutarou, who was deprived of his face by the phantom thief Mubou, the hitodenashi of humans and souls, recruits the 15 year-old Komura Nozomi, who was sold by his parents at the age of 5, as his assistant. At the same time Mubou announces his next target: The tongue of Enoki Sari, one of the daughters from a family well-known for their railroad company. Akitsu and Nozomi are hired as guards for Sari and eventually Nozomi instead of the great detective finds himself investigating the serial murders happening within the Enoki family...