After seeing Kaze Hikaru praised by multiple people whose opinions I respect, I finally got my hands on the first two volumes, courtesy of my local library, and have reviewed them for Comics Should Be Good. You can find that review here.

Kaze Hikaru is published under Viz’s Shojo Beat imprint and thirteen volumes have been released here so far. The series is still ongoing in Japan and released its 26th volume there in May 2009.