Roy's first encounter with her is when she runs in front of his car. He staggers to a halt in the road and what greets him is the collapsed form of a young girl, unconscious- but fortunately still breathing. He takes her home and deliberates what to do with her, much to the dismay of his housemate. She doesn't know where she is, or where she came from, and tackling that issue, all while reality as they know it collapses around them, proves to be a bit of a challenge.