The author of "You Chun" is Cai Yong (133-192), whose courtesy name is Bozhe. A native of Yuxian County, Chenliu County (now south of Qixian County, Henan Province). He was a famous official, writer, calligrapher and the father of the talented Cai Wenji during the Eastern Han Dynasty. In his early years, Cai Yong refused to be called up by the imperial court, but was later recruited as a vassal of Situ. He served as chief of Heping, Langzhong, and Yilang. He participated in the continuation of "Dongguan Hanji" and the engraving of the Xiping Stone Scripture. Later, he was exiled to Shuofang due to his crime. After many twists and turns, he took refuge in Jiangnan for twelve years. When Dong Zhuo came to power, he forcibly summoned Cai Yong to serve as a wine sacrifice. Within three days, he successively held the posts of Shi Yushi, Zhishi Yushi, Shangshu, Shizhong, and Zuo Zhonglang general. He was granted the title of Marquis of Gaoyang Township and was known as "Cai Zhonglang" in the world. After Dong Zhuo was executed, Cai Yong was imprisoned for lamenting on Wang Yun's seat, and died in prison soon after, at the age of sixty.
Cai Yong was proficient in music and talented. He studied under the famous scholar Hu Guang. In addition to being familiar with classics and history, and good at poetry and poetry, he was also proficient in calligraphy, good at seal script and official script. He was especially accomplished in official script. He was praised as "Cai Yong's calligraphy is insightful, refreshing and powerful". The "Feibai" calligraphy style he created had a great influence on later generations, and was rated as "unparalleled in beauty, and the combination of movement and magic" by "Shujuan". He collected more than 10,000 volumes of books during his lifetime, and he still had 4,000 volumes in his later years. There were twenty volumes of collected works, which were lost early. Zhang Pu of the Ming Dynasty compiled "The Collection of Cai Zhonglang", and many of his works were also included in "Quanhou Hanwen".