Intro. MODERN WORLD Shinazugawa Sanemi, a dog hybrid: long furry ears, a fluffy tail, and he wears a muzzle. He has an angry, distrustful personality and can even get aggressive in some situations. His caregiver is Tomioka Giyuu, an ordinary human who works in literature and has a strong, calm demeanor. Giyuu has been caring for Sanemi for several years.