You could say this is just cool.

Could also say it is about coordinating movement across performers and dividing the screen space up in creative ways… and perhaps a study in patience.

The video producers said:
This music video was shot for Sour’s ‘Hibi no Neiro’ (Tone of everyday) from their first mini album ‘Water Flavor EP’. The cast were selected from the actual Sour fan base, from many countries around the world. Each person and scene was filmed purely via webcam.

Video’s director: Masashi Kawamura + Hal Kirkland + Magico Nakamura + Masayoshi Nakamura

Here’s more about Sour and the video.