Lain Matthew, is a fifteen year old girl trying to find purpose in the world she now lives in. She has survived nearly three years in the apocalypse completely alone, besides the dead that roamed. Until the fifth year when she was taken to a town called "Alexandria", they warmly welcomed her to their group not expecting much in return. While staying in Alexandria one person helps her learn what it means to help and save people, along with how important it is to stay alive for everyone that cares for her.