Serena, Princess of Acaia, wakes one morning accused of killing the king—her own father, her world falling apart. Then a beggar steps out of the shadows with a dagger that turns back time. Together, they claw their way back to the palace. But then the earth shakes. A hundred thousand Persian cavalry encircle the capital, and the "beggar" drops to one knee—not as her protector, but as their crown prince. His proposal costs her whole country. She draws her blade:"Get out of my country." He draws the dagger, willing to erase every memory they share. The she realizes what is the real pain. When love becomes the enemy of two nations, can a weapon that rewrites fate cut through the only choice that matters?