The Missing Piece(Attack on titan fanfic)

Haru Jeager, Eren Jeager's older sister is out in search for her brother. But one thing is wrong with this plan, Eren doesn't know he had a sister! The only ones that know of her existence are; Mikasa Ackerman, who of which was asked to protect Eren at all costs, and Corporal Levi, an old friend of hers. All these years she's been surviving OUTSIDE of the walls looking for any human activity. Haru being the only one left from her squad, heads for home to see what has happened in the past 7 years.