He Broke Our Engagement to Save the Nation

On the eve of their wedding, her childhood sweetheart breaks her heart to march to the front lines. When her father is killed delivering vital supplies to the border, she takes over the mission herself—only to cross paths with her ex-fiancé, who appears to have defected to the enemy. But he is secretly working undercover, and together they hatch a perilous plan to strike from within. Can their shattered bond survive the brutal toll of war?