A fortune teller tells Goro that his luck will change; as he returns to his apartment, three strange girls, his pets in the past, a goldfish, a parakeet, and a hamster, return as guardian angels to protect Goro.

Ran, Tsubasa, and Kurumi have been having feelings for Goro and not achieving good results. Tamami, a cat, arrives and everyone begins to make a fuss because of her appearance.

Mika, a rabbit, and Nana, a dog, arrive with a clock so that each of the six people can continue to take care of Goro with equal amounts of time.

After being restrained for 24-hours, Goro collapsed! Ayumi, a turtle, and Akane, a fox, arrive to also take care of him. Now that there are eight guardian angels, they find themselves always quarrelling. The guardian angels managed to take care of Goro, but when he awoke, everyone was gone...

The guardian angels are forced to return to the homeworld, The World of Maids. In order to return to Goro, they must regain their caring hearts and open the gate to the world. The guardian angels start desperately praying and hear the voice of Goro searching for the guardian angels. Before long, a new girls appears in front of them.

The now twelve guardian angels begin to redecorate Goro's room with their favorite items, because Mika declared the room was boring, and they look forward to Goro's return.