12 girls, 12 boys, 1 abandoned city.
New vs. Old Generation.
Earth as we knew it vanished in 1990. Everyone died except the people who made it to the safe zone in Kansas, USA. Only about 100,000 people could fit in the safe zone, out of 5.1 billion people worldwide. With the fear of it happening again, males and females were separated and kids were forbidden to happen, but after years of trying to survive the people were growing old and needed new people to help, so the president made a requirement that only 24 kids shall be born in the month of December. After that they waited a few years to see if anything were to happen, since nothing happened they then started beginning their new world. They start with the safe zone and building the president's place on top of it, then dividing their open desert into 4 cities: Clementine, Morado, Beryl, and Hollow.