A fanlisting is a place for all fans of a particular show, movie, actor/actress, singer, etc. to come together and build the biggest listing of people from all around the world who are fans of that subject.
This particular fanlisting is for fans of "Mobile Suit Gundam: The 08th MS Team", one of the many anime series taking place in the Universal Century timeline. The name of the fanlisting is taken from the 12th and last episode of the series. If you are a fan, then why don't you just join us?