OST-'Just'

I believe the title on the 9th cut roughly tranlates to "I cannot leave your love" by the artist/group "Just". This song is used quite a lot in a number of espisodes. Does anyone know if this is a single artist or group? When I do a search on "Asianfanatics.net", many options are displayed, but nothing with the singular title of "Just". Are there other CD's by this artist? I have also tried a search on "Yesasia.com" and "kpopmusic.com" with no success. I have already purchased a CD by Clazziquai as a result of this show, and would like to know more about the artist/artists of this particular song. Any ideas? Thx.