Kouya no Kotobuki Hikoutai Gaiden: Oozora no Harukaze Hikoutai
A short spin-off anime released on "Kouya no Kotobuki Hikoutai: Oozora no Takeoff Girls!" game app and YouTube. (Source: AniDB)
A short spin-off anime released on "Kouya no Kotobuki Hikoutai: Oozora no Takeoff Girls!" game app and YouTube. (Source: AniDB)
A short spin-off anime released on "Kouya no Kotobuki Hikoutai: Oozora no Takeoff Girls!" game app and YouTube. (Source: AniDB)