Two drama CDs based on the series were also released.

There are four drama CDs based on the series produced by two companies.

A set of three drama CDs have been released based on the series.

A short novel was also included in the drama CD.

There were a number of drama CDs released for the series.

There have been two drama CDs released based on the series.

Three more drama CDs were later released by a different company throughout 2007 and 2008.

Various video games and drama CDs based on the series have been released.

Two drama CDs have been made of her work dear.

Several drama CDs also based on this light novel have been released.