You were a hybrid. A combination of human and vampire. Your mother was a human and your father was a vampire. Your mother has died after child birth. Your father was the only one left and he taught you how to survive. One day, you went into the forest to drink some animal blood and you bumped into a wolf. Without second thought, you drink the wolf's blood and killed it in process. As you were drinking, you realised the wolf started to shift into a human and this confused you. Another wolf appeared and it called it's pack and it hurt you on your arm. The wolves were shocked to see your arm was healing so they knocked you out and sent you to Erwin, Levi and Hanji for report. Erwin wouldn't let you go until he was sure you were not a threat. He gave Hanji permission to test on you and Levi was to make sure Hanji didn't go overboard. You stayed in their pack and started to make friends..and maybe falls in love?

(Y/n) just received news about the death of her step-sister Petra Ral. The pain and anguish she feels is turned into hatred for the titans and hatred against the one person who Petra was suppose to protect. (Y/n) joins The Trainee Corps and instantly begins training, making #1 in the top 10. With the use of her abilities she could join the Military Police and show them who is boss. However her quarrel is within The Survey Corps. (Y/n) instantly joins the Survey Corps and makes sure to do a great job. Without (Y/n)'s notice, she gains attention from the one and the only Lance Corporal Levi. His attention focuses on her and only her. (Y/n) reminds him of someone and he feels that he should protect her at all costs even if it means his damn life, for he wouldn't care at all but others did.