An introduction episode explaining how Kohsaka, Kasukabe and Sasahara got involved with Genshiken; after some uncertainty, Sasahara decides to fully participate in the club.

Genshiken takes Sasahara to Akihabara for dōjinshi shopping while Kohsaka and Kasukabe go to Harajuku for clothes; Kasukabe discovers Kohsaka's hentai collection and gets an introduction on the subject from the others.

Two freshmen take an interest in Genshiken and join them for a night out on the town. Kasukabe, however, has no intention of making them feel welcome.

Madarame is stuck in the club room with Kasukabe and tries to strike up a conversation, running through different scenarios in his head which parody the visual novel format.

The club, along with Keiko, pays a visit to the beach, much to the dismay of some of the members; Keiko decides to compete for Kohsaka's feelings and tries to become an otaku.

Kasukabe decides the club room needs a cleanup, but an accident causes Genshiken to be banned from the university fair. As an apology, Kasukabe takes Ohno's place in the fair's cosplay contest.