Modern Japan. In a typical Japanese house found anywhere, Guest lives with two giant beloved dogs. Kuro, the black-furred one, and Shiro, the white-furred one, are both large dogs of a new breed called the Grand Wolf Corgis, reaching about 2 meters in total length. While they possess genetic traits close to wolves, their bodies and faces are rounded, and they have an incredible amount of fur. Despite their large build, their limbs are short like a Corgi's, and their bodies sway like giant furballs every time they walk. Though they look like wolves, their personalities are extremely friendly, and they love their owner, Guest, from the bottom of their hearts.