Eren Jaeger has an older sister who joined the Scout Regiment against her mother and father's wishes. She leaves the Scouts to look after Armin, Eren and Mikasa. Re-training with them and joining Levi's squad brings back old memories. EDITED (hopefully)

(Y/n) was a mysterious little girl since the age of 3, she new the danger beyond the walls but didn't stop her, nope (y/n) likes to take risk she craves for danger. Since her dad joined the military police she would take her dad gear, and go exploring beyond her safety of her wall or what she like to call them "the dungeon"she would take her journals and study the titans behavior with out being seen. She did this at a very young age. That is until the day the colossal titan appear. What will happen next ? Find out her in (y/n) story