The Book of Esme: An attack on titan stand alone story

This story takes you into another person's persepective of Titans in the walls. Besides eren Yeager being a male protagonist of one story, this one is a female who experiences the same fate of traumatizing gore. Though Esme would experience all of this, she is still quiet, clever, swift and quick at what she does, making her an excellent solider. It's only until her path is stuck in between two regiments where secrets she was kept from unfold. New secrets and new people appear out of no where..... now it is time for her to decide to join sides for the good or evil of humanity