At first glance, Sadaharu is just another adorable white fluffy puppy. Pull the camera out, however, and you realize there's more to him that just that: he's also enormous. Technically, Sadaharu isn't just a dog— he's an inugami, a dog-god, and among other things he can grow even larger by eating strawberries and milk. In this form he also develops a pair of horns. Sadaharu's favorite pastime, though, is biting the heads of various characters in the series, from the protagonists to the one-offs.