My fairy tale home country

Alot of fairy tale in another country but I will tell about my fairy tale in my country. The story is called "Con rong chau tien" and is talk about a man who can change into a dragon and a beautiful girl. One day they meet and fall in love so the girl have 100 children . The man say he cannot live in the mountain he can just live in the sea so the girl bring 50 children and the man bring 50 children down to the sea.