* "Still Doll" by Kanon Wakeshima
* "Rondo" by Kanon Wakeshima
Season 2
* "Suna no Oshiro" by ON/OFF
* "Tsumetai Hana" by ON/OFF
OVA
* "Futatsu no Kodou to Akai Tsumi" by Kanon Wakeshima
Anime Film
* "Last Song" by Kanon Wakeshima