Backstory

I do not own attack on titan or Levi
*spoilers for attack on titan*

(Y/n) (L/n) was armin's adopted sister and the childhood friend of Eren and Mikasa. She had never told anyone about what she was and continued her journey with her 3 friends until she was in the survey corps and met a certain cold-hearted captain. Will she be able to keep her secret safe.