We are not sure of the release date for こいけん! 〜私たちアニメになっちゃった!〜. It was released at the box office on 2012-08-23 so we estimate it was released to DVD in November 2012.
Cast: Rie Kugimiya, Kaori Nazuka, Kikuko Inoue, Aki Toyosaki, and Ryouko Shintani
Koi-Ken Love Research club member Kaede Wakamiya comments that being an idol must be extremely easy- A comment that irritates idol Nagisa Toyama. At the suggestion of her manager, all female members of the Koi-Ken club are invited to become an idol unit with Nagisa. Kaede then realizes that maybe being an idol isn't so easy after all...