When the members of the Etiquette Club at St. Ignacio's School for Girls go down the tubes — literally — they acquire the skimpy outfits they wear to pilot the Battle Skippers — state-of-the-art military mecha. As Extars, the Etiquette Club members fight to eliminate evil from the world, meaning the bizarre schemes of Sayaka, the nasty, super-rich president of the rival Debutante Club, and her flunky, Todo. Note: The series was created to promote a line of robot toys from Tomy.