|Created by||Katsuhiko Nishijima|
|Years on Air||1986-1990|
Japanese Title: プロジェクトＡ子
An alien space craft crashed into Graviton City, wiping out the entire population and leaving a massive crater where Graviton City is rebuilt. Students A-ko Magami, a perky, fun-loving red-haired, sailor-suited teenage girl, and her best friend C-ko Kotobuki, a bubbly, carefree optimist, enter a new year of school at the all-girls Graviton High School. Although A-ko possesses superhuman speed and strength, she considers herself an average teenager; she mostly worries about getting to school on time, chronically oversleeping her alarm clock each morning. The pair catch the unwanted attention of B-ko Daitokuji, a rich, snobbish, spoiled and brilliant fellow student.
B-ko develops a crush on C-ko, and is determined to win her over. B-ko's attempts to win C-ko over fail and remembering that she was A-ko's rival back in kindergarten, B-ko creates a series of mecha piloted by her team of female followers to attack A-ko each morning. Losing each new and more powerful mecha she creates and dons the "Akagiyama 23", a powered suit that looks like a bikini. B-ko quickly escalates the fight across the school with no restraint.
Trench-coated spy "D" has been monitoring A-ko and C-ko each morning and reporting to a large spacecraft as it approaches Earth. The aliens' conclusion is that they have located a lost princess whom they have been looking for. The aliens finally reach Earth and begin an all-out attack against the Graviton military, which is outmatched by the alien technology. A-ko and B-ko own fight continues across the big city even as the military and aliens battle. C-ko is abducted in the middle of this confrontation by "D", revealed to be a member of the Lepton Kingdom of Alpha Cygni, an all-female race of aliens. C-ko is their princess.
Witnessing the abduction, A-ko and B-ko set aside their differences. Infiltrating the spaceship, A-ko confronts D and the ship's alcoholic Captain Napolipolita, while B-ko rescues C-ko. B-ko then reneges on the truce and opens fire on A-ko, D and the Captain, destroying the ship's navigation system. The vessel lands, precariously perched on top of the city's Military Command Tower (actually the remains of the previously-crashed ship).
A-ko happily awakens the next morning, sore from the previous day's adventures, and walks with C-ko to school in their new uniforms. The girls pass by a disheveled D and the Captain begging for donations to repair their ship. The film ends with B-ko, ready for yet another fight, smiling as A-ko appears on the horizon.