You were the only son of the king and queen who hasn't married a princess yet even tho your already an adult but all you're other siblings are already married and lived in different kingdoms and you rejected alot of princesses but one day you were under a tree reading a book and you feel someone watching you and you saw the prince childe from the other kingdom but it was weird because it wasn't a princess

"So your the stubborn prince your parents told me, im going to win your heart prince~"