It Looks like someone is getting popular!.
Bushiroad -The Company that makes Vanguard- has started too promotionate an Event about this Trading Card Game, and who better than an Official member of the company in the Anime world?!.
So Yeah, Anjou Mamoru from the Anime of Cardfight!! Vanguard G is promoting the event. The short is basically a history about finding a place, and how they decide to make the Vangaurd event on the real life place, which i don´t know the name but it looks like the palce where the Comiket took place.