Once upon a time, a long time ago, in the land of Lac Viet, now the North of our country, there lived a god with a dragon body, the son of Long Nu, whose name was Lac Long Quan. With the invincible health of the dragon breed and the transforming miracles that his parents taught him, he often goes to land to help people eliminate demons and teach people how to plant and raise livestock...
At the same time, in the high mountains of the North, there lived a beautiful fairy named Au Co, belonging to the Shen Nong family. Hearing that the land of Lac Viet was fertile, everything was rich and lush, with many fragrant flowers and strange herbs, she came to visit. Here, she met Lac Long Quan and the two became husband and wife. They lived together very happily in Long Trang palace.
Not long after, Au Co became pregnant. Everyone was excitedly waiting for the day she bloomed. But strangely enough, when she gave birth, she gave birth to a bag of hundreds of eggs, after a hundred eggs hatched a hundred plump pink children. The cubs don't need to be suckled, they grow up as fast as blowing, each one of them has a handsome face and invincible health.
One day, Lac Long Quan suddenly missed the rough sea, he went back to the aquarium, leaving Au Co and his cubs day and night to miss and be sad. Until one day, Au Co had to call Lac Long Quan, she lamented:
- Why did he leave me and go, not stay with me to raise the children?
Lac Long Quan gloomily:
- My whole life is associated with the deep sea, she is a fairy in the high mountains. People under water, people on land, a separation is inevitable. Besides, I have elderly and weak parents in the deep sea, no one to take care of me, there is no one to take care of the work there for me. Well, I took fifty of them to the sea, she took fifty of them to the mountains, divided them to govern in the directions, when in trouble, they had to help each other.
With no other choice, Au Co took fifty children to the mountain. Au Co's eldest son was honored as king, took the title Hung Vuong, named the country Van Lang, and established the capital in Phong Chau. During the court, there were generals and martial arts generals, the king's son was called Lang and the king's daughter was called Mi Nuong. It is also because of this story that later on, our people are very proud because they are the descendants of the Dragon and the Fairy.