Here’s a video featuring the opening to the TV series, Tactics. I think I’m addicted to the song. I have two episodes on my iPod, and this song is now a part of my workout playlist.
You can see Tactics production stills here at Manga.com, and some video snippets as well. It’s an interesting mix of manga and horror. See more info on Tactics’ Japanese folkloric terms that relate to the series after the video:

Oni- Demon, ogre or troll; refers to the character, Haruka.
Tengu – Supernatural spirit or monstrous creature; refers to the character Haruka.
Youkai- Apparition, or spirit; refers to …read more

Good anime has always had a place in my heart, and if it includes demons and monsters, all the better. Consider Tactics, a series which is a part of Sci-Fi channel’s Ani-Monday, a block of programming which features 2 hours of anime on Monday nights.
Tactics is a very intelligent series, which manages to weave the supernatural with Japanese folklore in a very unique way.