[2006] kanariya PV question

[Keishi]

There must be something symbolic here but I can found what.

one thing
I noticed is there are two sides of people, the whites & the blacks. Everytime the black-dressed people listening to the music, they always have the surprised evil-ish expression, while the white-dressed ones seems to be shocked like they got a heart attack.

Another thing is the numbers on their hands, what are they supposed to mean? And the black eyeshadow?