Kana Asumi
An OVA episode, titled , was released with the limited edition of the 14th manga volume on September 16, 2011. The episode's opening theme song is which is once again performed by Tōyama and the ending theme song, is performed by Kana Asumi. It is based on chapters 54–55 of the manga, in which Chihiro Kosaka forms a band called the "2B Pencils".