I've looked for ages for a site with her on it, and apparently, she's part of this unit called "J.E.Y" in some HYPER VOICE company.
http://www.hypervoice.com/eimi/vocalist/index.html
She looks so different!
Also, some fun "sites" to go to:
SHU-YA and ZIN's group: THE "STALKERS" or STKRS" -
http://www.geocities.jp/jin11stalkers/lordmovie.html They also have links to their.. songs... where they.. SING. O_O
HIDE's vocal dance unit "CASK" -
http://pksp.jp/cask-1118/