You have autism and savant syndrome which makes it difficult for you to interact socially but you also have great abilities.

When you were little you ran away from home with your siblings because your parents didn't want you, while you were playing with your siblings. Your brother fell off the slide and suffered a brain hemorrhage which caused his death. After your brother died, you were taken care of by Dallen, someone who saved you at the scene.

Now you are working in a hospital as a new resident, your abilities exceed those of normal humans in general because you can identify symptoms easily.