A.D. 2089 - 80 years have passed since Space War I changed the lives of both human and Zentraedi races. Both races are at peace on Earth when a new alien race called the "Marduk" appear within the Solar System. While covering the first battle between the U.N. Spacy and the Marduk fleet, SNN rookie reporter Hibiki Kanzaki discovers Ishtar, an "Emulator" that enhances the Marduk's combat abilities through singing. Hibiki brings Ishtar to Earth to teach her the values of life and culture. Together with ace Valkyrie pilot Silvie Gena, Hibiki and Ishtar must find a way to save Earth from total destruction at the hands of the Marduk leader Ingues.

Gyagu Manga Biyori is an anime that is about absolutely nothing. It is comprised of 12 short stories (5 minutes long each) that only build up a small amount of plot for each story. The anime feeds off the stupidest things, but is quite humorous.

Episode 26 included in the ninth DVD volume of Kaibutsu Oujo.

The story takes place one year after the OVA. Because of the previous war, Kabucki-cho was devastated, and the owner abandoned his lingerie pub, "Pallion," and opened "New Papillion" in Akihabara. During the war, Tsubomi, and her colleagues Anne and Shizuku lost their memories, and they began new lives in Akihabara. On the other hand, the Susano, aliens who were invading the Earth, appeared. They turned a UMA (Unidentified Mysterious Animal) into a monster and make it raid on Akihabara. Rama the cat made Tsubomi and her buddies retrieve their memories, and let them fight against the monster as Lingerie Soldiers.