Red Savarin, an eager and ambitious 17 year-old anthropomorphic dog, ventures through the mythical floating islands of the Shepherd Republic where specialized robots are commonplace, living a carefree life traveling with his younger sister, Chocolat, and utilizing his personalized robot, Dahak, to complete various odd jobs for money. While on a routine retrieval mission, they have a chance encounter with a mysterious boy named Elh and find a medallion that inadvertently entan...