Proper Japanese Title: BASTARD!!-暗黒の破壊神- (Basutādo!! Ankoku no Hakaishin)
Originally began serialization in Weekly Shonen Jump, after a year the series moved to the quarterly seasonal specials before returning to the weekly magazine from 1997-2000 (although it did not appear at a weekly rate but mostly continued its quarterly appearances). Ultimately, it was moved to Ultra Jump where its inconsistent publishing rate was more acceptable.
Translated into English as Bastard!! by Viz.