Perfect match

"And if I'm not your perfect match then mistake me for her."

As the years passed, our civilization began to divide into groups, the leaders ruled every corner with a firm hand, imposing their technology, their ideas, their beliefs, and anyone who had the courage to face them, ended up on the prairie. A dark place where those rebels are tortured to death.

When you turn 18, you are subjected to a series of tests, at the end one of its machines will determine your "perfect partner" the one with whom you will have to spend the rest of your life.

How can a machine tell me who to love?

I'll find you Zach, I promise.