Eizou Hakusho I and II are OAVs that were only released in Japan. This is the opening video from the Eizou Hakusho II Kurama character tape.
Both the song and the footage are too beautiful. The song is "Koori no Naifu wo Daite" (Embracing a Knife of Ice), sung by Kurama's seiyuu: Megumi Ogata. You can download that and many other Yu Yu Hakusho songs at: http://mainpage.springtimeforyuyuhakusho.com/official-merchandise/music
1/1/2014 EDIT: Since the Google/YouTube asshats want to force people into a public Google+ to make comments or edit comments, comments are now disabled on all my videos. Sorry YouTube and Google but you're not making me and these people dance for your profit and popularity.