Father and mother form a happy little family with their children, until one day their children decide to split up. The house is cut into two equal halves. One half for brother and one half for sister. The parents are involuntarily torn apart by the divorce and are forced to swap children and homes week by week.
Following a major catastrophe, a new society, Arcadia, is born. Resources have become scarce and a point system, known as the Citizen Score, is introduced. It determines what you can and may do and what a citizen is entitled to.