Kenka Bancho 5 : Otoko no Rule ("Rules of Men") now has its official website.
At the moment the site contains a "coming soon" message and artwork of the main character Naoto Naruse.
The website does not have much currently but hopefully it grows as the release date gets closer.
Kenka Bancho 5 is set to release on the PSP some time this winter. You can visit the official website here.