Saori Hayami
An original video animation DVD produced by Studio Gram was bundled with the limited edition of the third manga volume sold on February 26, 2011. An extended version was released by itself on March 25, 2011. The second OVA features two pieces of theme music: one opening theme and one ending theme. The opening theme is sung by Kana Hanazawa and Haruka Tomatsu, and the ending theme is sung by Yoshino Nanjō and Saori Hayami. A single containing the theme songs was released on March 25, 2011.