The year is 2017. After the passing of Joseph Joestar, Josuke inherits the role of CEO at Joestar Enterprises, in NYC, where he resides with his adopted sister Shizuka Joestar. That is, until a mysterious new force threatens not only the Joestar name, but Shizuka's original ancestry as well. She must embark on a trip to take down this new enemy and discover secrets that change how she sees the world completely.