12 parts Complete Rose has a secret and no one knows what it it, but no one really cares, but her secret follows her around, literally.
Rose lives in a world where there are only kids (Well under 20) and right before there 20th birthday they get taken away, no one knows what happens to them but the all suspect that there dead. Rose is 19, meaning she doesn't have long before it her turn. Everyone gets their blood drawn daily, but no one knows why. The only a adults are the Helpers (the doctors) as Rose likes to call them and Them but Rose doesn't ever know if they're human.
When she gets assigned to a doctor she starts asking questions; questions that will hurt the people she cares about.