Koi-ken! Watashitachi Anime ni Nacchatta! (2012)

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 is not so easy after all...