Mahoromatic

Suguru Misato, a young teen boy living by himself since his parents have passed away a few years ago, decides to hire a maid to help clean up his house. Enter Mahoro, a former combat android created to defend the Earth against a secret alien invasion in the early 1980's. Given the choice of continuing in her service for Vesper and functioning for a mere 37 days or retiring, giving up her combat armor and continuing to function for 398 days, Mahoro has chosen to serve as a maid to one Suguru Misato.

Back at school, Suguru now has to explain his new lifestyle to his friends, since it's pretty difficult to hide the fantastic lunches that Mahoro packs for him and the well-pressed clothing that he now wears. His close friends, Hamaji and Kawahara are immediately infatuated with Mahoro's beauty, while Miyuki and Rin are slightly jealous of the same. And then there's Chizuko, the Food Connoisseur, who is completely taken with Mahoro's cooking expertise. To round off this cast of characters, Ms. Shikijo, their over-sexed school teacher, has an instant dislike for Mahoro and the attention she commands from young Suguru. This causes Ms. Shikijo to set her goal in seducing Suguru away from Mahoro. This, in addition to Mahoro's dislike for lewd and indecent behavior, has automatically created a competitive atmosphere between the two ladies. So watch out when the battle begins!

After Suguru's water heater breaks, Ms. Shikijo and Mahoro's rivalry explodes during a visit to a Bath House where Miyuki's family works. July 19th, and school has ended. July 20th marks the day that Suguru's father has passed away. In memory of his passing, Suguru asks Mahoro to accompany him to the gravesite, not knowing that Mr. Misato had once worked for Vesper and served as Mahoro's superior in this secret organization. Not only does Suguru feel the loss of his father, but Mahoro, equally, if not more so is torn at the loss of Suguru's father for reasons that only she knows.