Ebiten: Kouritsu Ebisugawa Koukou Tenmonbu
English title: Ebiten
Japanese title: えびてん 公立海老栖川高校天悶部
Type: ONA
Episodes: 10
Source: Manga
Genres: Comedy, Ecchi
Studios: AIC Classic
Producers: AIC, Kadokawa Shoten, AMG MUSIC
Duration: 24 min per ep
Rating: R+ - Mild Nudity

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.