An original video anime, released on Blu-ray in a combined Hybrid Disc that also hold an Eureka Seven AO game for the PlayStation 3. The OVA is set between episodes eight and nine of the series.

Nuclear testing has resulted in the abrupt evolution of the Fumoon, a tiny but highly intelligent humanoid race on a small island, who are detected by Dr. Yamadano. Except for a few witnesses including the detective Shinsaku Ban, and the young men Rock and Kenichi and Kenichi’s sister Pichi (Pinoko), no one believes him. The Fumoon are kidnapping animals from around the world to bring with them as they use their space ships to evacuate the earth, because they know Earth is shortly to be destroyed by an enveloping cloud of black gas created by a stellar explosion. The Fumoon intend to abandon mankind, but one Fumoon, Rokoko, who becomes good friends with Kenichi, tries to help Dr. Yamadano and the others to develop a space ship to allow a few humans to escape, with the help of Dr. Ochanomizu and Dr. Frankenstein.

Due to spacecraft failure earthlings Ryu with computer robot "MOS" landed on self-navigated planet Gdleen. There Ryu meets a cute Euradonian fairy Fana. At that time, the planet was in the midst of a dispute over a Gavana temple. Self proclaimed God Gavana captured Fana for a sacrifice. Would they be able to escape? And what the identity of Gavana?!

East Force meets West Force and all Hell breaks loose. The Solonoids, that lovable race of female warriors, are at it again, fighting amongst themselves. During a heated battle, however, it looks like the leaders of the two factions have hung their warriors out to dry. In the middle of all this fighting and chaos, East Force detects a transmission from an unidentified planet. The Gall Force gals leave their posts to go. Lufy, the West Force's Ace Pilot, who is after Rabby, follows them to the planet.