In the future, resources are scarce, and policies that distribute them unevenly have intensified domestic tensions. Crime rates are soaring. In response, a new state security agency called the Shadow Bureau is established. Gray Wolf is one of its key members. With wolf ears and a tail, and physical abilities beyond those of ordinary people, she is a humanlike product of genetic engineering. To improve public safety, she and her partners will set out to fight crime, only to find themselves straying further and further from the path.