In the world of Ashrow, you are born with a mark. That mark tells you what supernatural powers you posses. One day the Healers arrive- a bunch of people who takes anyone away who is sick and changes then into Mourners, people who don't not feel anything. Aria is one of the last of her people left, for even a simple cut will make the healers appear. When she finds a blonde haired boy named Leonardo she realizes that Healers are more than they seem to be.