JoJo's Bizarre Adventure Part 4: Diamond is Unbreakable manga volume 1 features story and art by Hirohiko Araki.

In April 1999, Jotaro Kujo travels to a town in Japan called Morioh to find a young man named Josuke Higashikata, the secret love child of his grandfather, Joseph Joestar. Upon finding him, Jotaro is surprised to learn that Josuke also possesses a Stand. After their strange meeting, the pair team up to investigate the town’s proliferation of unusual Stands!

JoJo's Bizarre Adventure Part 4: Diamond is Unbreakable manga volume 2 features story and art by Hirohiko Araki.

Jotaro Kujo discovers a lead on the stolen bow and arrow, but is it too late to stop the thief? While Jotaro is investigating that lead, Josuke Higashikata and Koichi Hirose find a new ally in…Okuyasu?! The bully wants to mend his ways after the death of his brother, and the first step is going to school with Jotaro and Koichi. Plus, Yukako Yamagishi enters the scene, and she’s got love on her mind and anger in her heart. Will Koichi survive his first brush with true love?

JoJo's Bizarre Adventure Part 4: Diamond is Unbreakable manga volume 3 features story and art by Hirohiko Araki.

Let’s go eat some Italian food! Josuke and the gang find themselves in hot water in a brand-new Italian restaurant thanks to its overly aggressive chef. Is he an enemy Stand user or just a foodie gone off the deep end? Plus, Josuke discovers that someone has been spying on every known Stand user in Morioh right before his absentee father, Joseph Joestar, comes to town, and the gang has to contend with Rohan Kishibe, a local mangaka who is a really bizarre individual!