JoJo no Kimyou na Bouken: Diamond wa Kudakenai
The fourth part of JJBA focuses on Josuke Higashikata, the illegitimate son of Joseph Joestar, with Jotaro Kujo and Joseph Joestar along in a supporting role. In 1999, an ancient artifact known as the "Bow and Arrow" starts giving Stand powers to various people in the town of Morioh. Josuke and his friends investigate a series of strange Stand-related murders in Morioh, finding themselves in conflict with the many new Stand users. Araki retroactively introduces the "Bow and Arrow," an ancient artifact which causes latent Stand ability to develop in people, as a way of explaining the origin of Stands.