Josuke would be 16 years old when he learned of his family's history ... Jotaro embarked on a journey to Egypt alongside his grandfather, Joseph Joestar, to defeat DIO. In the early 1990s, after ...
After all, he is the illegitimate child of Joseph Joestar. Josuke lives in Morioh ... In Diamond is Unbreakable, he is shown to be too old for combat but still willing to help where he can.