Tainaka Sachi’s (タイナカ サチ) new song Unmeibito (運命人). According to the wiki she sings some opening themes for Fate/stay night. No idea why her name is in katakana. Anyhow she has a nice voice.
http://en.wikipedia.org/wiki/Sachi_Tainaka
http://www.tainakasachi.jp (official homepage)
http://ameblo.jp/tainakasachi/ (blog)
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Only have Sachi is NO.1 . I love Sachi ( I’m girl )