Ranmaru’s reference is the Inugami from the Kakuriyo no Yadomeshi manga series Kakuriyo: Bed & Breakfast for Spirits (かくりよの宿飯, Kakuriyo no Yadomeshi, lit. "Afterlife Inn Cooking") is a Japanese light novel series written by Midori Yūma and illustrated by Laruha. Aoi Tsubaki is a college student who can see Ayakashi, a trait she inherited from her deceased grandfather. One day, when Aoi walks past a torii shrine, she sees an Ayakashi sitting there who announces that it is hungry. However, after giving it food, Aoi is kidnapped by the Ayakashi, an Ogre called Odanna. He takes her to the Hidden Realm, a world where all the Ayakashi live. Ranmaru (乱丸) is one of the supporting characters in the Kakuriyo no Yadomeshi series. Known also as the Dog God, he is the lead manager of the rival inn, Orio-ya, and is one of the eight Hachiyo of the Hidden Realm. Inugami (犬神, "dog god/spirit"), like kitsunetsuki, is a spiritual possession by the spirit of a dog, widely known in western Japan. They have seemed firmly rooted until recent years in the eastern Ōita Prefecture, Shimane Prefecture, and a part of Kōchi Prefecture in northern Shikoku, and it is also theorized that Shikoku, where no foxes (kitsune) could be found, is the main base of the inugami. Inugami would appear when performing the kojutsu ritual, or kodoku, which allows you to summon the spirits of specific animals. Like other types of spirit possession, inugami becomes more easily attached to people who are wildly unstable in emotions. Not limited to just humans, inugami would also possess cows and horses and even inorganic materials, and when they possess a saw, it would become useless. The idea that there exist bloodlines of families that easily get possessed by an inugami, as well as bloodlines of inugami themselves, come from the regional tales. There was as many inugami as there were people in families that had inugami. It is said that this inugami would pick up cues and understand what the family is thinking and the inugami would immediately go possess them when the family wanted something. Despite their loyalty and readiness to fulfill their master's every wish, if the spirit was treated roughly or cruelly, it could chew to death. Families that had inugami were thought to have prospered and grown wealthy. At the same time, there were also cases where they were not treated like fox spirits that brought fortune into families by being deified, but rather detested as curse gods.