When one is an outcast, one might be more amiable to animals than other humans, and when one finds an injured fox in the forest and takes care of it, one might just end up having saved a kitsune's life. And when it turns out that an obscure kitsune law declares that a kitsune saved by a human is obligated to serve that human for the rest of his life... well, that might just change the trajectory of your life. Especially when the kitsune is huge, in more ways than one.