http://www.youtube.com/watch?v=z0k9h_O_Mz8
I absolutely adore Salyu's voice - definitely my favourite Japanese female vocalist. Kameda is backing her on bass (and Sakurai from Mr. Children on acoustic guitar), and this is the song that got me into Salyu way back when the single first came out. Not a fan of her style but great, great songs (esp. on her first album).
If you're into Japanese movies, Salyu was "Lily" in
All About Lily-Chou-Chou
Edit: Original Version of
Valon-1