Inukashi (イヌカシ) also known as the 'Dogkeeper'. She is the owner of a hotel in the 'real world' (No. 6).
She use her dogs as 'heaters' for her customers or else they will be freezing to death!
Her mother is actually a dog and she died. Nezumi sometimes will insult Inukashi's mother and she gets really offended with it and said she'l never be friend with him.
Inukashi has some sort of secret that Shion felt, but it is unknown of what the secret is.