Ultra Jump issue 6/2023 has confirmed that the last chapter of Jojo’s Bizarre Adventure spinoff: Crazy Diamond’s Demonic Heartbreak is coming to an end very soon. As of now, the chapter is set to release on June 19th, 2023. There is also no confirmation if this story will be followed by another.

Jojo’s Bizarre Adventure: Crazy Diamond’s Demonic Heartbreak is a spin-off manga written by Kouhei Kadono, author of Purple Haze Feedback. Tasuku Karasuma, the author of No Guns Life, is credited as the illustrator. It is the first official JoJo’s Bizarre Adventure spin-off in a manga format that is not illustrated by Hirohiko Araki. Crazy Diamond’s Demonic Heartbreak was first announced on August 19th, 2021. It started serialization in the January 2022 issue of Ultra Jump.
Stardust Crusaders and Diamond is Unbreakable: The Bizzare Between Adventure
The story is set between Stardust Crusaders and Diamond is Unbreakable. A decade after DIO’s death, Hol Horse accepts a request from an old acquaintance’s mother. He has to find and bring back her missing parrot, who was raised with Pet Shop. He travels to Morioh with Boingo after seeing a prediction from Tohth. There, the two encounter Josuke Higashikata and Ryoko Kakyoin. The four of them are psychologically tortured by illusions of DIO’s presence and memories of the past, due to the parrot’s Stand and a mysterious assailant. As of now, there is no confirmation that this story is actually canon to the overall story.

Volume 1 of Crazy Diamond’s Demonic Heartbreak debuted with an estimated number of 35,356 copies sold within three days according to the Japanese Oricon sales charts, ranking in 17th place overall on the week of June 13, 2022 to June 19, 2022. Its second volume debuted higher with an estimated number of 54,090 copies sold. This ranked it in 9th place overall for the week of December 19, 2022 to December 25, 2022. Ultra Jump reported that as of December 2022, the series reached over 300,000 copies in circulation for its first two volumes, including print and digital copies. In May 2023, the series reached over 500,000 copies in its total circulation for all three volumes.
At the time of this writing, there is no official English translation and distribution for Crazy Diamond’s Demonic Heartbreak.