The Unspoken Rule

In a world if strict dichotomy between a realm that is, and one that is not, there can be no cross over. But when a loved one is ripped away from the Red City and doomed to live eternally in the realm of unimaginable brokenness, can there be any hope for redemption? Once cast into the Blue City, is one cursed to remain there forever? For our protagonist, is is the way things are. But must it be the way things shall always be?