"Amara stood there, her head tilted to her left. Smiling a slight smile, Amara's eyes turned frosty blue. They shone against the black valley they were in. She can't fight back now, she has reached the level where she wants nothing but death-- in other words, her other self took control." - Chapter 5, Atoning. Definitely something you can binge on. It's a realistic OC x Natsu fanfiction.