Set in 1999, 11 years after the events of "Stardust Crusaders," Jotaro Kujo tracks down Josuke Higashikata, the illegitimate son of Joseph Joestar, to help him find a magical bow and arrow which grants people Stand powers. Along the way, Josuke and his friends discover that a Stand-using serial killer is on the loose in their hometown of Morioh and they set out to stop him.

JoJo's Bizarre Adventure: Part 4 - Diamond Is Unbreakable

The events take place 11 years after the events of Stardust Crusaders, and follows the adventures of Josuke Higashikata, the illegitimate son of Joseph Joestar, as he and his new friends hunt for an evasive magical bow and arrow which has granted people dangerous Stand powers, uprooting Josuke's previously quiet life in their home town of Morioh.

The film adapts and expands the Planetarian visual novel by Key. The story is set in a dystopian future where biological and nuclear warfare has left a once prosperous civilization in complete ruin. The film tells the story of an old man travelling around with a mobile planetarium projector to show people the stars.

Planetarian: Hoshi no Hito

Set in 2001, two years after the events of "Diamond is Unbreakable," Koichi Hirose is sent to Italy and tasked by Jotaro Kujo to search for Giorno Giovanna, an aspiring mafia gangster who is a son of Dio Brando. But as Dio possessed the body of Jonathan Joestar at time of his conception, Giorno is technically a Joestar and takes more after them than the father he never knew. The series follows Giorno as he joins the mafia organization Passione, moving up through its ranks with the intention of becoming its boss to improve life in Italy.

JoJo's Bizarre Adventure: Part 5 - Golden Wind

Set in Italy during 2001, two years after the events of Diamond is Unbreakable, the series follows the adventures of Giorno Giovanna, the son of Dio Brando (from Phantom Blood and Stardust Crusaders) but conceived with Jonathan Joestar's body, who joins the criminal organization Passione in the hopes of becoming a gangster (or "Gang-Star") and taking control of the organization in the name of reform.