In this crazy world, no one gets to decide anything. No, it's the government who decides everything. You're only allowed to live a "free" life until your eighteenth Birthday. On your eighteenth Birthday, you have to go to the government immediately. When you're there, they will decide how you're going to spend the rest of your life. There's only one thing that's a bit of a problem.. If the person who's turning eighteen has a twin, one of them has to die.