Shimazu Sho, a Japanese medicine student currently living in London, has an interesting secret: he is the owner of a zoomorphic creature, a boy with dog like features called Kin.

How could this happen? In a world where magic is not fantasy, anything is possible. Thanks to a misshaped magical spell Sho used to cure the agonizing Golden Retriever dog, he must now deal with his zoomorphic Kin, while he searches for a way to return the poor creature to his original form. But nothing goes to plan for Sho, when he begins to develop a special "relationship" with his most unusual of pets.