This is meant to be a comedy series.
The series is meant to be more comedy than action.
Koji is a lonely boy who discovers that he has inherited a large mansion and three maids from an unknown guardian. He later discovers that they transform into robots to fight the monsters which appear to attack the town regularly.
- Episode 1: Pilot
- Koji Anton: The main character, he discovers he has been chosen as the girl's new master
- AC: The sweet motherly maid, she transforms into a pink robot with the ability to materialize blasters.
- VTOL: The series and posh VTOL is commonly seen in a Yukata, or Miko outfit with a katana. She transforms into a red and black bot with a winged jet pack and wields a beam katana
- ATV: The self-proclaimed bodyguard, ATV wears a workout uniform most of the time and like to force Koji to train, she is also the one most likely to tease him. She transform into a blue robot with a shield and beam war axe.
- Marie Hasif: A foreign girl who desires to prove she created the strongest robot made.
- F-22: Marie's avian themed robot. Despite his appearance, his personality matrix is male and he gets upset when he is mistaken for a girl.
- Nautilus: A marine type robot maid who can take one mermaid like form.