You were a poor woman living in a tunnel with your sister, your sister would always steal stuff while you just begged for money until

Your sister came back with a thousand dollars and offered you to go with her you declined and she was about to leave when the man came in, your sister apologized when he saw you and took an interest in you, he offered all the money you could ever imagine in exchanged to kill her, he gave you a gun...

2 Years later you were resting after doing house work