Dio Brando, later known simply as DIO (ＤＩＯディオ), is the main antagonist of the first and third parts of the JoJo's Bizarre Adventure series, Phantom Blood and Stardust Crusaders. He is also mentioned as a primary antagonist in the sixth part of the series, Stone Ocean. In flashbacks placed before the events of Part 3, DIO demonstrates a burgeoning ability to form genuine relationships in numerous conversations with Enrico Pucci.