Comic Flapper
"Denkigai no Hon'ya-san", written and illustrated by Asato Mizu, was serialized in Media Factory's "Comic Flapper" magazine from June 4, 2011 to November 4, 2017. Media Factory published fifteen "tankōbon" volumes from November 22, 2011 to December 22, 2017. The manga is also published by Ever Glory Publishing in Taiwan.