Kanji Sasahara, College's Farmaker and ACG Amateur, founded his extracurricular activities in Ghyshiken (Society for the study of modern visual culture) to become a real and complete Otaku. Meanwhile, Saki Kasukab, a friend of another novice member of Genshiken (also Bishounn) Macoto Kohsaka, was drawn into the activities of Genshiken Otaku-Ish reluctantly, but her offended attitude towards Otakus changes without her awareness. Unfertured, Saki pursues a cosak through various club events, from costume games and comics to video games and collecting anime figures, learning more than he ever wanted about the humorous world of Japanese fans ...