sentences:  The second light novel series, titled , was written by Hidehisa Nanbō and illustrated by Hashigo Ueda.As of June 11, 2009, 2 volumes have been published, with a third scheduled for July 1, 2009.The publication of this series coincided with the anime television series, and uses the same cast of characters; however, while some of the chapters are adaptations of the anime episodes, several are original.