The Wipe

Imagine a world where you're life is chosen for you, now imagine a world where your spouse is chosen for you.
This is the world Trinity Quote lives in, her future spouse will be chosen from her classmates, not only will she have to live with one of her classmates for life. Her memories of her classmates will be deleted, everything she ever faced in school will be wiped away in an instant. Her only memories being what she learnt.