The Nightmare Test

7 teens, 7 nightmares
Aurora, Lorenzo, James, Sabrina, Cally, Leo, and Luna are like your average day sixteen-year-old. They go to school, party, hang out with friends, but that's all until they turn 17. That's when it all changes.
At the age of 17 everyone in their country is required to be put into a group to take the nightmare test. None of the teens know who anyone is in their group. It is a test that sends all 7 kids into each other's subconscious to live through eachothers worst nightmares. They then live through and try to survive through each other's worst nightmares, with two catches:
1. You don't know that you are in a nightmare
2. If you die in the nightmare, you die in real life
The point of the test is to decrease overpopulation. It's a system that only lets the strongest survive. They make the seven teens live through each other's nightmares as well to see just how strong they are.
The only question is, who will survive the nightmares, and who won't?