JoJo no Kimyou na Bouken: Diamond wa Kudakenai
adapts the fourth part of the
JoJo no Kimyou na Bouken
It's the year 1999, 11 years after Jotaro Kujo's desperate fight against Dio in Egypt. Jotaro meets with Josuke Higashikata, the illegitimate son of his grandfather Joseph Joestar. He discovers that Josuke also has the same "Stand" power and that a new threat is surfacing in Morioh City.