Your message re-enacted by human fireflies

It’s a website for japanese web provider So-Net. Not quite sure what the idea for it is, but it’s quite cool. Very Uniqlo-ish in a way that it uses people t re-enact some actions (vide Uniqlock). Anyways, the website is all in japanese, but just click on the image below, then click on the main screen, and then type a message on the field provided. Human fireflies will soon light it up for ya.