K-On! (Japanese: けいおん!, Hepis a Japanese four-panelmanga series written and illustrated by Kakifly. It was serialized in Houbunsha‘s Manga Time Kirara magazine between the May 2007 and October 2010 issues. It was also serialized in Houbunsha’s Manga Time Kirara Carat magazine. The manga relaunched from April 2011 to June 2012 with two separate storylines published in Manga Time Kirara and Manga Time Kirara Carat. The manga is licensed in North America by Yen Press. A spin-off manga about a different band of high school girls, K-On! Shuffle, began serialization in July 2018.