http://www.youtube.com/watch?v=h5wBgEIiBmE&feature=player_embedded ULTRA-RARE!!!!!!!
http://www.youtube.com/watch?v=BeJ9yMg4_PU
Yaay! Found Kai-kun's character song!
I always listen to the three openings of Cardfight!! Vanguard. The full JAM Project versions.
And yes, they are in Japanese. But I love them so much...
Vanguard
Believe in my Existence
-and-
LIMIT BREAK