As part of the special package deal for the 12th volume of the manga series, Miyako Arata has been assigned to work in the Shinjuku Ward Nocturnal Community Relations Division. Each ward in Tokyo has its own department dedicated to dealing with supernatural and occult-related incidents. Since Miyako possesses the ability to comprehend non-human speech, his first encounter in the story takes place when he meets a youkai at Shinjuku Imperial Gardens who addresses him as the renowned Heian-era exorcist known as Abe no Seimei.