Better than I could've asked for Reiner x Oc

Danielle Ackerman-Jaegar and her brother Levi Ackerman live in the underground with their friends, Isabel magnolia and Farlan church until they are captured by the survey corps and Danielle is sent to live with her father. However when her father tells her about the outside world and her eldest brother, she lives with him in Marley for five years until she turns eleven and her and marley's youngest warriors go to paradis to infiltrate the walls. Little does she know, that she has a hot head younger brother inside wall Maria with a thirst for revenge on the titans for his mother's death. When her and her brother become closer and she see's Levi again she desires to stay. But when she falls for a certain armoured warrior will she really stay? Will she go back? Will they run away? But as things get more difficult she leaves. The big question is, will she ever return?