A young teenage prince and princess have been warned all their life that if they don't find a partner on their own at least one year before being crowned to king or queen, then they will be forced to marry the prince/princess of the neighboring country. Ironically, this is just what happens to them. The princess's entire family (including herself) is forced to move into the prince's castle, joining their countries together. They are given one year to try and love each other before being officially announced as husband and wife on their 18th birthday. During this time, will they find a way to get over themselves or forever hate their partner?