月刊コミックブレイド
Three radio dramas based on the manga series were produced. The first radio drama was available for order in "Monthly Comic Blade"s August 2005 issue and is a reenactment of the first five chapters in the series. The second drama was included with the limited edition of the eighth volume. It is a reenactment of chapters 29–32. The third drama was released with the limited edition of the extra volume. It reenacts the first three chapters in the extra volume.