電撃コミックス
A spinoff manga called , illustrated by Yura Shinano, began serialization in the March 2009 issue of "Dengeki Daioh", and ended in the March 2011 issue. The first volume was released by ASCII Media Works on December 28, 2009, with the third volume released on March 27, 2012 under their Dengeki Comics imprint. Although the series uses the "Hyakka Ryōran" name, it is based on the "" pachinko games by Heiwa, and therefore has no connection to the original series.