 The second album is a drama CD featuring the characters Louise, Kirche, and Tabitha—voiced by Kugimiya, Nanako Inoue, and Yuka Inokuchi respectively—which was released on September 5, 2007.A manga series illustrated by Nana Mochizuki was serialized in the Japanese seinen manga magazine "Monthly Comic Alive" between the August 2006 ("Monthly Comic Alive" debut issue) and October 2009 issues, published by Media Factory.Seven "tankōbon" volumes were released by Media Factory under their MF Comics imprint.