Seikima II was a real-life Japanese death-metal band. Full of kabuki makeup, songs about rape, murder, and satanic destruction, and a public persona of devilish evil. The OVA purports to tell the backstory of the band, which, according to its publicity, was composed of actual demons (akuma) from the parallel dimension Makai. In the OVA, five vicious demons (the five band members), led by Demon Kogure (the lead singer), are plotting the destruction of humanity. The only effective opposition comes from the saintly Rosa, who is actually the reformed war goddess Freyja in disguise. The demons attempt to activate their ultimate weapon, the Tower of Babel, before Rosa can complete her counter weapon, the Tower of Cain. The demons triumph and are on the verge on destroying the world when their leader suddenly decides that they should, instead, form a rock-and-roll band in order to convert people everywhere into demon worshipers.
Unfortunately the movie Seikima II - Humane Society is not yet available on HBO Max.
| Directing | Jun Kamiya | Director |
| Art | Kazuhiro Kinoshita | Art Direction |
| Sound | Demon Kakka | Theme Song Performance |
| Sound | Jun Watanabe | Sound Director |
| Visual Effects | Kazuchika Kise | Character Designer |
| Visual Effects | Akio Katada | Key Animation |
| Visual Effects | Akiharu Ishii | Key Animation |
| Visual Effects | Atsuo Tobe | Key Animation |
| Visual Effects | Yasuhiro Oshima | Key Animation |
| Visual Effects | Koji Minewaki | Key Animation |
| Visual Effects | Kazuhisa Okada | Key Animation |
| Art | Mizuho Nishikubo | Storyboard Artist |
| Visual Effects | Kanbei Shimada | Key Animation |
| Visual Effects | Toru Otsuka | Key Animation |
| Visual Effects | Kouji Komurakata | Key Animation |
| Visual Effects | Yuya Kobayashi | Key Animation |
| Writing | Mayori Sekijima | Screenplay |
| Visual Effects | Kazuchika Kise | Animation Director |
| Visual Effects | Miyako Yatsu | Key Animation |
