Ali Project
Five pieces of theme music are used for the anime series; one opening theme, two ending themes and two insert songs. The opening theme is by the Japanese band Ali Project, the ending themes are and "Remedy" by Maaya Sakamoto, and the insert songs are and "PROUD" by Lisa Komine. An orchestra version of "Kitei no Tsurugi" was also used as an insert song in episode 20. Ali Project released the "Kitei no Tsurugi" single on November 19, 2008, while "Ame ga Furu", Maaya's seventeenth single, was released on October 29, 2008. The second ending theme, "Remedy" was released within Maaya's sixth album, Kazeyomi, on January 14, 2009.