けいおん！ うらおん！

Bundled with the first-season home-video volumes of K-On!, these Ura-On! shorts pull Yui, Mio, Ritsu, Mugi, and the rest of the Sakuragaoka High Light Music Club out of their main storyline into quick comedic sketches. Drawn in a squashed, deformed style, each runs only a few minutes and strings together gag scenarios that do not touch the main plot. They are supplementary extras rather than a starting point for K-On! itself.