To seek vengeance against the tyrant king for her parents' murder, Rubiana plans to leave her nunhood, pledging her firstborn to God. When the time comes to honor her promise, there's a hitch – she lacks a husband. In steps Louis, the late king's sole heir and the current ruler's adversary. Louis offers a solution: he will assist Rubiana in having a child if she marries him and guarantees his protection. Yet, as threats loom large, can they uphold their bargain amidst perilous circumstances?