Joystar: Royal Encounters of the Third Kind.

It's been two months since Jack Joystar was whisked away from his old life and thrown 2000 years into an unknown future - and he has been doing his best to adapt to the life in the Iridescent. Things are about to get a little more complicated, however, as the cargo ship heads towards Jack's first official mission: escorting a prince who's anything but charming to his new home and his arranged marriage. Simple enough, as long as they don't run into trouble along the way...