Saori Hayami
The series has two opening themes and two ending themes. The first opening theme is "Help!! (Hell side)" by Ayana Taketatsu and is used for the first four episodes, and the second opening theme is "Help!! (Heaven side)" by Taketatsu and Saori Hayami for the subsequent episodes. The main ending theme is "More-more Lovers!!" by Natsuko Aso and is used for the first 11 episodes. The second ending theme is "Happy Birthday, my holy day" by Taketatsu and is used for episode 12. The insert song by Hayami was used in episode nine. Two character song singles were released for Mio (Taketatsu) on December 15, 2010, and Arashiko (Hayami) on January 26, 2011. The anime's original soundtrack was released on December 22, 2010.