Heroine? Saint? No, I'm an All-Works Maid!

'''Heroine? Saint? No, I'm an All-Works Maid!''' is a reincarnation isekai.

Ritsuko Mizunani is a brilliant child from Japan, who could advance any field of science she chose; despite this, she is obsessed with becoming the perfect maid. She dies in a plane crash on the way to England to train, being reborn in another world as Celesti McMurden and retains her same brilliance and passion. After the death of her mother Serene, she learns in the will that her father is Count Cloud Reginbass; the two were in love but Cloud's father wouldn't have it. Knowing there's no way the Count would let her follow her dream, Celesti decides against contacting him and promises herself and mother's memory that she would become the best maid ever; using magic to look Japanese again and changing her name to Melody Wade.

Trivia

 * Melody has no clue that she reincarnated as the heroine of an otome game; luckily her precaution against being recognized helped her evade knights her father sent to look for mother, and her by extension, paid off. But as the trope goes, her father WON'T give up looking for Melody and eventually she will be discovered, becoming vexed by constant interruptions to her planned life.
 * However, the story formula means her father won't give up on trying to find her. Completely vexing for Melody when this happens, as she has ZERO interest in being a noble. Even if lesser nobility have their daughters become maids, someone at count rank would be socially unacceptable.
 * This also means that if shes a saintess, theres got to be a demon lord or evil spirit she needs to help deal with.
 * The narration at the end of chapter one implies that God realized it majorly screwed up by reincarnating Ritsuko as Celesti and blessing her with saint magic. Completely unknowing that the newly christened Melody couldn't care less about anything but being a maid.
 * Melody is ignorant of how she's the strongest magic practioner in the world.