No. 8 is a city of mining and machinery enhancing, being the core of the Synix city system for hundreds of years. After a nuclear fallout, the cities moved to burrow underground, connected by tunnel systems. Social class is divided between districts in the city, closer to the surface being more well off. Abigail and her younger sister have lived with a prosperous family for the past 5 years after her parents death. Staying in the highest social class, their foster parents are servants of the city. When Abigail gets caught up in a misunderstanding she finally sees how much there is a difference in social class. Nicolai is born and raised in the slums, living off scraps just to make it by. He has to live with the inequality of being born as a Furrow. After his parents death, he has to step in and take care of his sick brother on his own, without the help of the city. All is well, until he gets accused of stealing medicine from a high end family, medicine very limited. He finally puts an end to his unfair life.