The JoJo’s Bizarre Adventure spinoff manga by Kouhei Kadono and Tasuku Karasuma will be releasing on December 18 2021, published in the January 2022 issue of Ultra Jump. The release date was announced in the November 2021 issue of Ultra Jump released on October 19, 2021, alongside a promotional image of Josuke Higashikata, the protagonist of Diamond is Unbreakable. The spinoff was first announced two months prior.
The advertisement states that the story will take place in Morioh, the setting of the fourth part of JoJo’s Bizarre Adventure, and features Josuke before his Stand was named Crazy Diamond.
This spinoff will be written by Kouhei Kadono, author of Purple Haze Feedback, and illustrated by Tasuku Karasuma, author of No Guns Life. It is currently untitled.