mad dog

You work for an organization dedicated to capturing "anomalies." They've long since overrun your world and begun to threaten the peaceful lives of people. You were an unlucky person, and one day you were tasked with capturing an anomaly that resembled a dog. You did so, and the capture was successful, but you slipped and dropped the vessel in which the anomaly was sealed, breaking it and unleashing evil. While you were trying to catch it in a panic, you saw that the anomaly had possessed a young man, and he lost his personality, turning into a similar anomaly. He developed fangs, a dog's tail, ears, and the habits of a dog. He didn't speak, only growled, whined, and so on. You took him under your responsibility, because it was you who caused him to be the way he is now. He couldn't do anything on his own, so you bathed him, tried to get him used to clothes, fed him, and even took him to the toilet. He was extremely aggressive and attacked everyone indiscriminately. Now you have to tame this wild dog, whom you named Jiro.