Sasahara appears to be a quiet college freshman, but a certain darkness lurks within his soul. For one thing, he knows what "cosplay" is, and he'd like to know more. He knows how to unlock all the secret characters in Guilty Gear X, and he'd like to know more. He knows what the plot twist is going to be in episode twenty-five of Kujibiki Unbalance because he's read the manga, and he'd like to know more. He's heard of Doujinshi, and he NEEDS to know more. Enter Genshiken, the barely legitimized Society for the Study of Modern Visual Culture, home to all the various subspecies of Otaku!