During the second revolutionary civil war, the Kuomintang reactionaries attacked our red base area on a large scale and besieged the main force of the Red Army. One day, in a Soviet area in the south of the Yangtze River, Dandan and Dongdong brothers and sisters, members of the Children's League, were carrying red tassels and herding sheep on a hillside where azaleas were blooming, while standing guard. Suddenly, there was a terrible gunshot. From a distance, the Red Army troops are retreating on the mountain, and the villagers in the nearby valley are also moving. In the panic, the second grandpa, the chairman of the village Soviet, called Dandan and Dongdong and led them to evacuate. On the way, they found Bai, the commander of the Red Army, injured and lost in the reeds. At the sight of the injured Bai, Danny's mind immediately flashed a happy scene of the Red Army commander leading Bai into the village. They immediately found a hidden place to treat Bai's wound and decided to return Bai to the Red Army commander as soon as possible. After careful treatment by Dandan and Dongdong, Bai's injury really healed. The two brothers and sisters were ecstatic. Dandan danced with a wreath, while Dongdong danced around Bai with a reed flute. Unexpectedly, it was discovered by the white bandit soldiers, and Sir Zhong was taken to cover up. Once, catching fish in the river in winter and winter, Bai went further and further, and went to the enemy horse. Dandan stamped his feet in a hurry and angrily blamed his brother. They looked for the White Horse Dragon everywhere, but on the way, they were found by the white bandit soldiers and Dong Dong was taken away. In the enemy camp, Dongdong was surprised to see his second grandfather, and at the same time found the figure of Bai in the enemy line. Wit Dongdong used an opportunity to go out to work as a coolie to lure Bai out with the familiar reed flute signal, and the enemy's horse also ran to the Red Army headquarters in vain.

Zhao Yun's mount in Chibi is also called "White Dragon".