One day, the members of the Astronomy Club discover a shocking fact: apparently, there exists an anime called Ebiten that features all of them as its main characters! Determined to learn the truth behind the anime, they set out on a journey to meet those who make it.— written by SinganNote: bundled with the fourth volume of the Ebiten manga.
- Other Title: Ebiten: Kouritsu Ebisugawa Koukou Tenmonbu OVA, Ebiten: Kouritsu Ebi Sugawa Koukou Tenmonbu OAD, えびてん 公立海老栖川高校天悶部 OAD, えびてん 公立海老栖川高校天悶部 ギガゾーン23 PART II 秘密く・だ・さ・い
- Status: Completed
- Sub/Dub: Anime Sub
- Anime Type: OVA
- Genres: Comedy, Ecchi, Parody, School, Shounen, Action, Mecha, Music, Romance, Sci-Fi, Shoujo Ai
- Characters: Hiromatsu, Rikei, Kanamori, Hakata, Noya, Itsuki, Todayama, Kyouko, Todayama, Izumiko
- Score: 6.31
- Rank: 7782
- Popularity: 7408