The first opening theme song is "Take the Wave" by Naifu for the first 25 episodes, and the second is "So Far Away" by Pinc Inc for the remaining. The first ending theme song for the first 12 episodes is "Garasu no Haiwei (Highway of Glass)" by doa, while "Yume no Hitotsu" by Garnet Crow is used for episodes 13–25. The third ending theme is "Sono Egao Yo Eien ni" by Kitahara Aiko for episodes 26 to 38, and the final ending song is "Mou Kimi wo Hitori ni Sasenai" by U-ka Saegusa in dB from 39–50.