Ayaka also attended an interview after Okaeri 's production with Hiro Mizushima , who was a member of the Zettai Kareshi cast .
Okaeri was used as the theme song of the drama Zettai Kareshi .
Ayaka also attended an interview after Okaeri 's production with Hiro Mizushima , who was a member of the Zettai Kareshi   cast .
Okaeri was used as the theme song of the drama Zettai Kareshi .