Genshiken is a manga series by Shimoku Kio about a college club for otaku (extremely obsessed fans of various media) and the lifestyle its members pursue. The title is a shortening of the club's official name, Gendai Shikaku Bunka Kenkyūkai , or "The Society for the Study of Modern Visual Culture". The series has also been adapted into an anime directed by Tsutomu Mizushima. The manga originally ran in Kodansha's monthly manga anthology Afternoon from June 2002 to June 2006, and has been reprinted in nine bound volumes. The ninth and final volume was released in Japan in December 2006.
A two-part short bonus story was included across both volumes of the Kujibiki Unbalance manga, published 2006/7. Three years after the original manga ended, a new chapter (Chapter 56) of the Genshiken manga was released as a bonus together with the Japanese Genshiken 2 DVD box-set. The chapter told us what the characters had become, and what was happening in the Genshiken club right now.
Kodansha's Monthly Afternoon magazine announced in their November 2010 issue that the Genshiken manga would return as Genshiken Nidaime. The anime adaptation of Genshiken aired in October 2004 and the second series in 2007, but Genshiken is set to return in July 2013.