Kana Hanazawa
The first volume was released with the limited edition of volume four of the manga on July 23, 2010; and the second volume was released with the limited edition of volume five of the manga on March 23, 2011. The opening theme is " by Nobuhiro Makino (composition and arrangement), Hitomi Mieno (lyrics), and Kana Hanazawa (vocals) and the ending theme is " by Ataru Sumiyoshi (composition and arrangement), Hitomi Mieno (lyrics), and Kana Hanazawa, Minoru Shiraishi, Norihisa Mori, Takashi Matsuyama (vocals).