I’m still not really sure how death metal fits in with a gothic crime drama. However, the animators somehow put the two together to make one of the zaniest opening credit sequences I’ve ever seen.
To tell the truth, I think the first scream in the theme song set the scene for all the ridiculous stuff that happens in this opener. For whatever reason, the opening shows a devil chasing an apple down a checkered hallway. It also has a boy who tastes sweets while spinning in his office chair. It all looks strange at first, but all the scenes are abstract images that symbolize the show’s dark, violent mystery story.
I think everyone was paying more attention to the crazy death metal song, though. Hell, I’d give kudos to any anime show that somehow combines death metal with anime. That’s an accomplishment in itself.