Mahoromatic

Mahoro, a gynoid on retirement from the secret agency Vesper, passed her latest days as maid for Suguru Misato, an high school student who lives alone on father's house.

Adapting quickly to her new work, Mahoro enjoy a simple life outside the battleground she saw, living her days surrounded by Misato's classmates and friends.

While Vesper continue to fight an alien menace, Mahoro will back to war, this time to defend her friends.