Events taking place between volumes 18 and 19 of Bastard!! This material was originally going to be in the main manga, but that ended up not being the case. It was later released in various stages of completion over 3 doujinshi (Sketch, Unused, and Unused- Revised Edition)

In a post-apocalyptic world of heavy metal fantasy, the only thing able to save humans from orcs, lizard men, and other monsters is something even MORE evil. Sealed within a 14-year-old boy, the chaotic wizard Dark Schneider is unleashed to fight four mighty generals and their plot to resurrect the evil god Anthrasax!

In a post-apocalyptic world of heavy metal fantasy, the only thing able to save humans from orcs, lizard men, and other monsters is something even MORE evil. Sealed within a 14-year-old boy, the chaotic wizard Dark Schneider is unleashed to fight four mighty generals and their plot to resurrect the evil god Anthrasax! As announced in this month's issue of Ultra Jump (released on 6/19), the one-shot "WIZARD!!" published before the serialization of the original "BASTARD!!" will be rebooted! Shihira's drawings are amazing.

The second volume of this Bastard!! re-release is a complete redraw of this section of the manga, which also includes new scenes and added content. Volume 1 has minor art touch-ups. Volumes 3-9 are unchanged rereleases.

Tatsuro Ueza becomes worried about his sister Yoriko becoming popular and starts going on dates, partially out of a feeling of needing to protect his sister, as well as having feelings of his own...

High school student Yoshiya Robu has to deal with the return of his childhood friend, Rumiko Udo, who used to take advantage of him when they were kids. As a beautiful and multi-talented girl--as well as having a no-nonsense attitude from sutdents who hit on her--Rumiko becomes the school idol. But how will Yoshiya react when he finds out she still holds feelings for him?

An alternative version of the scene from Bastard!! where Princess Sheila sucks the poison out of Dark Schneider's body. Original Bastard!! author Kazushi Hagiwara released this as a Doujinshi expansion to Bastard!! Complete Edition Volume 1, which contains the original scene in question. This is the second in his "Expansion Set" series of Bastard!! Doujinshi.

An expanded, fully colored version of the sex scene between Dark Schneider and Kai Harn present in Bastard!! Complete Edition Volume 2. It was released as a doujinshi by the author of the original series, Kazushi Hagiwara.