Based on the manga of the same name by series creator Hirohiko Araki, the OAD will be animated by David Production, and is directed by series director Toshiyuki Kato and assistant director Yasufumi Soejima, character designs by Shunichi Ishimoto and Stand designs by Kenta Mimuro.
Thus Spoke Kishibe Rohan OAD will be distributed to customers who purchased all 13 DVD or Blu-ray volumes of the JoJo's Bizarre Adventure: Diamond Is Unbreakable anime.
[Source: Anime News Network]