So... is Koi-ken!: Watashitachi Anime ni Nacchatta! finished or not?
NO, it is not finished.
Why?
The anime finished after the manga:
Anime finished: May 24, 2012
Manga finished: January 01, 2011
... But MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Synopsis
The story centers around the Koi-Ken Love Research club.
One of its members, Kaede, makes a flippant remark about idols that rubs idol Nagisa the wrong way.
As a result, the entire female section of the Koi-Ken club, including Kaede, is invited to form an idol unit with Nagisa.
The anime then explores Kaede's journey as she discovers that the life of an idol is much harder than she initially thought.