One is the prince of a kingdom named Korevally. The king and queen leave the 18 year old prince by himself, apart from the servants that cook for him and clean the rooms. After years of never leaving his castle, he tries to visit the village, only to be caught and never tries again.
Another is the son of the king and queen in the neighboring kingdom named Junoolir. However, unlike the other prince, he does not act his 'role' as a prince, being "irresponsible, a mess, and ill-mannered," his father says. He is then sent to Korevally by his father and told to learn how to be a proper prince from the younger.
What could go wrong?