In the last years of Wang Mang, farmers and landlords and bureaucrats in various places revolted one after another. They were all looking for the children of the Liu royal family in the Western Han Dynasty to be emperors, so as to lead other uprising armies under the pretext of reviving the Han family.

Not long after, they found Liu Pongzi, Liu Mao and Liu Xiao, the descendants of King Jing of the Western Han Dynasty. However, the leaders of the rebel army could not dispute who would be the emperor of these three people. Finally, they thought of a way: draw lots.

The rebel army built a high altar in the north of Zheng County, Henan Province, on which the throne of King Jing was set up. The leaders "prayed" to the throne, and then carried a bamboo basket. There were three bamboo slices in the basket, which were "castrated" by the three sons of the Liu family. Liu Xiao was the first to grab, and it was a blank bamboo slice. The second one was grabbed by Liu Mao, and it was another blank bamboo slice. Finally, of course, Liu Pengzi caught it, and I saw the words "General Shang" written on it.

Fan Chong, who presided over the ceremony, took a look and hurriedly helped Liu Pongzi to the center of the high altar, then led the insurgent army to bow down. For a time he shouted long live under the altar, and a large number of people knelt in the darkness.

Liu Pengzi was 15 years old, a cow herder, wearing ragged clothes and barefoot. He had never seen such a battle before, so he was so scared that he ran down the high altar, threw the captured "divine talisman" and was about to slip away. Seeing that, Fan Chongyi hurriedly called for someone to capture the new emperor and ordered him to strictly guard it. In this way, Liu Pengzi became the puppet emperor of the rebellion army and has been in power for three years.