Manga
Shinshokan published the manga's 4 bound volumes between April 1999 and March 2001. Tokyopop published the manga's 4 bound volumes between April 6, 2004 and October 12, 2004. Tokyopop complied the volumes into The Demon Ororon: The Complete Collection, which was released on December 18, 2007.
Read more about this topic: The Demon Ororon