The Palaces Secrets

King and Queen Moon of Eraldsland have an only child names Moon Y/N, soon to be Park Y/N. Prince Jinyoung comes over to the Palace to learn about their culture and get to know Y/N for three months until their wedding. During these three months, her cousin that she hates the most comes over to visit for until their wedding is over. What Y/N doesn't realize is that he can pull back from the wedding any time he wants, and he can get with another girl if those are his wishes. At first, she was going to marry him for her people to be happy and for the war between Eraldsland and Jinhae-gu to end, but could she also get certain feelings for him now that she's seen the core of Park Jinyoung? Will she marry him knowing his secrets? Or will her cousin steal him away, killing off the population of the Kingdom, making a Kingdom become something no one can rule over, and having the Moon's be stripped of their ranks, becoming homeless. Or will Park Jinyoung come through with his part of the deal, and stick with Y/N?