Noya Itsuki just transferred to Ebisugawa High School. Since he has always had a fascination with space, he decides to join the Astronomy Club. However, he mistakenly walks into the Asstronomy Club - a club whose members are all female otaku. Itsuki notices that the members are really weird, but he has yet to realize that he joined the wrong club. His life becomes very strange very quickly.

[Source: MyAnimeList]

BD/DVD specials.

The girls of the Astronomy Club have really done it now! They discover that their own world just might be... a fictional one! When they cross over into the "real" world, they discover a world of animators, editors, and even their own voice actresses! Can the girls handle meeting their makers?

[Source: Sentai Filmworks]