I Was Supposed to Kill the Demon King, Not Marry Him

After defeating the Demon King at the end of a brutal war, Saint Reymia Louwen expects victory, peace, and a final prayer for the dead. Instead, the dying Demon King looks up at her and says, "Marry me. If you do, both humans and demons can still be saved."It sounds insane. It sounds like a trick. But when Reymia chooses not to kill him, she is dragged into a truth far more dangerous than war itself.
The holy towers that protect the kingdom are built on a lie. The White Ring, the sacred heart of the capital, hides a secret beneath its cathedral. And the world Reymia devoted her life to may have been feeding on stolen light all along. Now hunted by the kingdom that once called her its saint, Reymia is forced to flee with the very man she was meant to destroy. As they cross ruined battlefields, starving villages, neutral port cities, and the hidden roads beneath the capital, the line between enemy and ally begins to break.
This is not a story about easy forgiveness. It is a story about choosing what is right after the lies are exposed. About two people standing on opposite sides of history, and discovering that saving the world may require them to choose each other in front of everyone.