It looks like a fake site to me. I thought of the series True Blood at first, but this site has been around much earlier than that series or the popular vampire craze.
It could be real, but it is difficult to judge this one. I just Googled Dango Productions and it is a move production company. They do the websites and there are many related to the above site.
Upon further looking, I think all of the sites are just entertainment ones. It is a fun site, and I am bookmarking it.