A high school boy who suddenly finds himself turned into an Akita Inu puppy. He is taken in by his classmate Karen Inukai, on whom he has a crush, and lives together with her as her pet. Although he wishes to be turned back to human as soon as possible, he cannot resist the charm of living his life as Inukai's dog. Later on in the series, he gains the ability to change between being a dog and a human.
