Kujibiki Unbalance is a three-episode original video animation spin-off of Genshiken series, as well as a series of three light novels by Genshiken anime collaborator Michiko Yokote. Within the world of Genshiken, however, Kujibiki Unbalance is a popular manga and 26-episode anime adaptation, which is eagerly watched and discussed by the main characters. These same characters also purchase associated products and adult-oriented dojinshi based on the series, which constitute the motivation for some of the "club activities" held by the Genshiken. Genshiken characters who are fans of Kujibiki Unbalance tend to refer to it by the shorthand name of Kuji-Un .
