How Did You First Get Into This Anime/Manga?
As in how were you introduced to Yami no Matsuei? As for me - I saw an absolutely kick-ass AMV for this show, and then I thought I just had to check it out (thank God for YouTube)
Anyway here was the AMV: http://youtube.com/watch?v=CkMRcPgCwMo
If the metallic-ness of the music is bothersome but you're still interested, then just download it from LimeWire - you get much better sound qaulity...MUCH...