Attack on Titan: Levi x Reader (First Volume); Remembering to Breathe

Levi x Reader: Reader is a 17 year old high school student who fights to support her living. She's always had inhuman strength, but she hates fighting. Her strength is what ended up in her mother being killed by people who wanted to kidnap the Reader and her brother (Eren) being taken away from her into another family for protection. Anyways, one day, she's participating in an underground tournament for a big prize of $10,000. Her last match is against a dark-haired, short-statured man who is known around as the strongest fighter. His name is Levi, and he ends up winning and claims Reader's body as his prize. He drags her to a room where she is introduced to a group of students known as the Survey Corps. They request her help in defeating a common enemy who is after people who have special "powers" like them and reader. Reader is forced to join their gang and must now partner up with strangers in order to fight against these so-called Titan enemies!