Little Boy at the Beach

A bottle floated over from the other side of the sea, and it happened to be picked up by the little boy on the beach. There is a letter inside. The letter says "Hello! Stranger. I am the daughter of the sea, and I have been alone for a hundred years. My father has advised me not to talk to humans since I was a child, and I have never had friends. I have always been with my mother who is older than me. I am eager to see around the sea, instead of being bound to this small coral sea. If you are willing to make friends with me, write a letter and throw it into the sea! I will reply to your letter."