DESCRIPTION:
Sound only...

Artist : Syatten
Radio edit : http://www.youtube.com/watch?v=rBTAPpoymuo&feature=related
BMS BGA : http://www.youtube.com/watch?v=RmuIpFVEY7w
Arrange(by stereoberry) : http://www.youtube.com/watch?v=iCEZ1-t3Nb4
Estish remix(by Est) : http://www.youtube.com/watch?v=3IsGRKvjGc4
Progressive house remix : http://www.youtube.com/watch?v=cZT0c2UNgiw

i found this music from on niconico.
this music is wonderful...