Bastard!!

Synopsis

From Viz: 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. Official Japanese: [Comico](https://www.comico.jp/magazine_comic/11030), [Mechacomic](https://mechacomic.jp/books/123042), [Piccoma](https://piccoma.com/web/product/7098?etype=episode), [Shonen Jump Plus](https://shonenjumpplus.com/episode/10833519556325021844), [Ultra Jump](https://ultra.shueisha.co.jp/manga/manga-907/), [Yangjiang+](https://ynjn.jp/title/1924), [Zebrack](https://zebrack-comic.shueisha.co.jp/title/141) Note: Kazushi Hagiwara published numerous complementary dōjinshi for the series, [most being hentai](https://www.mangaupdates.com/series.html?id=151931). Vol 1 & 2 of the Complete Edition feature redrawn art (mostly in Vol 2), additional scenes and two graphic sex scenes.

Synopsis & details from MangaUpdates