Once upon a time, there was a king named Sima Haotian. He was kind-hearted and always thought of the people. However, the queen was more than ten months pregnant and had not yet given birth to the prince. One day, the queen was taking a nap and had a dream. She dreamed that a giant dragon entered his belly. The queen was frightened and woke up. Not long after, she gave birth to the prince. The king and the queen were very happy.
Several years passed, and Prince Yulong was eight years old. However, he encountered a traitor who stole the country, his father died and his mother disappeared. He and his loyal son were taken away by a monk.
The monk took them to live in seclusion in the mountains and forests, taught them martial arts, and changed the name of Yulong to Chu Tianyou to deceive others. However, Tianyou was frail and sick since he was a child, so the monk and Xiaoyu took great care of him.
When Tianyou was eighteen years old, the monk allowed them to leave the mountain and go to the capital to make a living.