ASCII Media Works
"Ro-Kyu-Bu!" began as a light novel series written by Sagu Aoyama with illustrations by Tinkle. Originally, Aoyama entered the first novel in the series into ASCII Media Works' 15th Dengeki Novel Prize in 2008 and the novel won the Silver Prize. ASCII Media Works published 15 novels under their Dengeki Bunko imprint between February 10, 2009 and July 10, 2015.