This story took place in the Eastern Han Dynasty. In Fanyang (范阳) where was in modern-days Hebei (河北) Province, there was a young man named Lu Chong (卢充). At the age of 20, one day Lu Chong hunted in the environs. He saw a river deer (獐), and shot at it. The river deer was wounded, but it ran off quickly. Lu Chong pursued it. He ran for a long time, and didn’t know how far he had left the city. Suddenly the river deer disappeared, and Lu Chong saw a grand official residence. A servant walked outside and called him.

Wu Zetian was only one woman emperor of ancient Central Nation. She was born in A.D. 624 in Bing Zhou where was in modern-days Shanxi Province. At the age of 14, she was selected to be a Cairen which was a title of a lower concubine in the period of Tang Tai-Zong who was the second emperor. After the death of Tai-Zong, she became a Buddhist nun according to court rituals. One day Tang Gao-Zong, the son of Tai-Zong, met her in the temple and became enamored of her beauty. So he recalled Wu Zetian and let her be a Zhaoyi. This title was higher than Cairen.