Shelby

* Escaped from the war and was able to hide on the surface easily because of the fact she looks mostly human, and keeping to herself. She takes up the name Shelby, since it's been so long she does not remember what her original name was. At some point in 201X she begins working at an orphanage and meets Frisk there. She becomes protective of them and they have a sibling-like bond. When Frisk goes to Mount. Ebott, she follows, and falls underground after them. She is able to bluff her way thoughout Frisk's journey that she's still a human, up until the very end where it's revealed that she's a monster. This changes depending on which route is taken.