Jotaro is a Japanese delinquent with Japanese roots from his father's side, and half-British half-Italian roots from his mother's side. Jotaro lives an ordinary life until the Joestar Family's old nemesis, DIO, returns. After seeing his mother Holy fall ill due to DIO's reawakening, Jotaro embarks on a journey across the world alongside his grandfather, Joseph Joestar, and a group of friends in order to save his mother and defeat the Vampire once and for all.