Maid Automata [MeyRinxMahoromatic}

Mey Rin, a female combat android, had an excellent track record working for the military organization, Midford. However, while on one mission, her creator is killed, and despite it not being her fault, she feels a terrible guilt. Due to her limited lifespan, she's decommissioned and taken out of combat, allowing her to expend her energy at a slower rate while living a civilian life. She decides to repay her creator by taking care of his son, Lau, and his childhood friend, Ran Mao, working as a maid at their residence. The three get along wonderfully, but Mey Rin's past comes back to haunt her, as adversaries from her days with the Midford's return with the intent to fight her. Through it all, Mey Rin does her best to live as happy a life as she can, knowing that she has less than a year before her lifespan ends.