Get on the Shin Koihime Musou Bus
Click to viewShin Koihime Musou, which is currently airing its third season in Japan & on Crunchyroll, is having two new games come out this summer. One is a non-adult portable game for the PSP, & the other is a new adult ERO game for the PC titled "Shin Koihime Musou ~Legend of the Moe Commander~". Don't be surprised that Koihime is getting a hentai game- even if there are a ton of loli characters attached to the title- because that's how the franchise started out.
So how do you go about promoting said two new games? Why get a large bus & put the characters all over it, of course! This bus has been seen driving around the streets of Akihabara in order to draw attention to the games. As if it needed to extra advertisement. It's not as if an A-list title like Koihime is a hard sell to otaku. Several lovely closeup pictures of bus can be found here:
http://blog.livedoor.jp/geek/archives/51019283.html