Y/n grew up with Hyunjin in Zenica village, in the kingdom of Zaseon. She was from the village, but Hyunjin was the heir to the throne as he was the only child of the king and queen of Zaseon Kingdom. Hyunjin was mistreated by his parents, especially his dad. And Hyunjin would run away from the castle and hide in y/n's house and spend the afternoons there. It was until one day when Hyunjin decided to run away from the kingdom. Y/n helped him build their own kingdom during the first five years, and among many items, she gave him a special mirror. Will he ever come back? If so, will he be recognized by his loved ones? Who will he end up with? Y/n or someone else? There is only one way to find out.........