 The first ending theme, used for all but two episodes, is by Little Non; the second ending theme, used only for episode six, is by Chata; the third and final ending theme, used only in episode twelve and which was also the opening theme for the OVA, is , once again sung by the trio of Kitamura, Shindō, and Kadowaki.The maxi single for the opening theme was released on October 24, 2007 by Lantis, and the one for the first ending theme was released on October 12, 2007, also by Lantis.The anime's original soundtrack was released on January 23, 2008.