
After fighting with her nemesis Ryuga, the Saint Android, Mahoro returns to Misato's side as his trustworthy maid. Soon after, a mysterious yet clumsy girl appears, revealing herself as a runaway android from the secret organization known as Management. Together, Misato and Mahoro take the girl under their wings and name her Minawa, gaining both a maid for the house and a little sister for Mahoro. But as the day of Mahoro's demise grows closer, the trio are inevitably drawn into the events of the final showdown between Saint and Earth.