The Tatami Galaxy (四畳半神話大系 Yojōhan Shinwa Taikei, literally "4½ Tatami Mythological Chronicles") is a Japanese comedy-drama campus novel written by Tomihiko Morimi (森見 登美彦 Morimi Tomihiko), originally published in December 2004 by Ohta Publishing (太田出版 Ōta Shuppan) in the tankōbon format and later reissued in March 2008 by Kadokawa Shoten as a bunkoban. Its first-person narrator is an unidentified upperclassman at a Kyoto university reminiscing on the misadventures of his previous years of campus life, with each of the four chapters taking place in parallel universes in which he is enrolled in a different university society ("circle" (サークル)). As of January 2011, Korean, Traditional, and Simplified Chinese translations have been published.