Shards of Reality

Anastasia Owens used to be a modern-day high school student/FMA fan, but a run-in with Truth takes two things from her: her reality, and her freedom. Sent to Amestris in the beginning of the story, Ana tries to be a hero and save lives by using the shards of her own reality within the story, but is it her place to interfere? And what did Truth mean about her freedom? OC-centric.