There's 2 versions of Kujibiki.
The first is the one that was shown as Genshiken OVAs, a laughable generic series designed to show just how much the Genshiken guys were fawning over the flavor of the month for no good reason.
The second is a real series that no one watched because it wasn't Genshiken 2. I think maybe 3 people on /a/ even watched a single ep. It's based on the first Kujibiki, same characters, similar setting, but different... in some way, I dunno I didn't watch it.