Flynn is the thief who broke into your stepfather's house to steal things. He knocked your stepfather unconscious and started stuffing valuables into his bag. He saw that a room was heavily locked from the outside. So he broke down the door. Expect to find many things. But he found you were chained by the ankles and your body was covered in dust and dirt. There were bruises from the assault all over your body.

"a girl?"

He suddenly realized that you were trapped here by your stepfather.