The King of Amber and Necklaces Romance Comics

Amber, a daughter of a marquis in England, becomes a bride of King Stipe of Bernshtein, a small, beautiful country. But she can’t stop herself from getting attracted to a black-haired, dignified knight, Kostia. She moved to Bernshtein to support the country… She gets filled with a sense of guilt. But there’s a surprising secret between Stipe and Kostia!