Diego wishes to get back at everyone who wronged him in the past. Diego is particularly vindictive against people in his way, and doesn't hesitate to injure or kill them, although he doesn't manifest murderous intents automatically. Diego is naturally solitary, never looking to bond with anyone, and in case he has to cooperate with someone, he will keep them at arms length. However, due to his stand “Scary Monsters”, he has a tail, has to keep bandages on the corners of his mouth and is dog like