You Have to Repay Your Savior

Fristine, a noblewoman whose family has fallen into ruin and who lives in the countryside, is appointed by the king to care for the exiled princess. Although the princess is being kept alive as a hostage and used as a political tool, Fristine takes good care of her and succeeds in saving her from a life-threatening situation. Later, the king is replaced and the princess is released from exile, where Fristine is invited to the palace In recognition of her past achievements, she is granted an audience with the king. However, the king she meets is none other than Gerard, with whom Fristine was once in love. This unexpected reunion sets her destiny in motion.

Official Translations:
Japanese