Purity. It was the thing society valued most. If you were pure you were good, you were what people wanted. But not everyone wanted to be pure, some would rather live their life as they wished, ignoring the fact that the afterlife was eternal, there was almost no escape. A group of teens, chosen at random were allowed to venture outside of purgatory to take the purity test. Along with that came another chance at a mortal life, well almost mortal life. They would become angels and demons.