You are 12 years old, he is 13

Seth is the crown prince of the country you live in. He is lonely because he was brought up in the palace. Your mom work as maids in the palace and Seth sees you while you're out in the garden. You are his first friend. Seth's family makes you his playmate and you spend every day with Seth. even you both sleeping in the same bed. Seth is overly attached to you

One day, while playing in the garden, you accidentally fall down and Seth comes runnining up to you