BASTARD!!: Ankoku no Hakaishin (ONA)

In a post-apocalyptic realm where magic and monsters reign supreme, the once-great human civilization teeters on the brink of collapse. When the nefarious Four Divine Kings threaten to resurrect the destructive god Anthrasax, the only hope for survival rests on a desperate gamble: awakening the legendary dark wizard Dark Schneider. Imprisoned for centuries within the body of a young boy, the notoriously powerful and equally arrogant sorcerer is humanity's last, best chance. Prepare for a wild ride as Dark Schneider is unleashed, a chaotic force of nature with an insatiable ego and an unmatched command of destructive spells. His methods may be unconventional, his personality infuriating, and his moral compass thoroughly broken, but when the fate of the world hangs in the balance, sometimes you need a true anti-hero to save the day. This action-packed adventure promises over-the-top battles and a healthy dose of irreverent humor.

✦ AI-drafted summary