Yang Guifei's father used to be an official in Shuzhou, where Yang Guifei was born and spent her childhood. Shuzhou is rich in lychees. After entering the palace, Yang Guifei missed her hometown food, so she sent lychees to and from Shuzhou many times. Apart from the love story between Yang Guifei and Tang Xuanzong, the most famous thing in history is that she likes litchi very much. There was a poem that said that when the world of mortals rode his concubine, no one knew it was litchi, which showed Yang Guifei's preference for litchi.

When Yang Yuhuan was born, her father, Yang Xuanyan, happened to be a manager in Shuzhou, where Yang Guifei had a very happy childhood. Until the age of ten, Yang Yuhuan's father died, and Yang Yuhuan was picked up by his uncle who was far away in Luoyang. Although he left his hometown, everything in his hometown was always remembered in Yang Yuhuan's heart, especially litchi, a specialty of his hometown. The delicious and juicy taste made Yang Yuhuan dream.

When Yang Yuhuan grew up, she was attracted by Li Mao, the longevity king, and later became the longevity princess. Unfortunately, the good times did not last long. When she entered the palace for a banquet, the beautiful Yang Yuhuan caught the attention of Emperor Xuanzong of Tang Dynasty. After the banquet, Emperor Xuanzong of the Tang Dynasty was still obsessed with Yang Yuhuan. Finally, in order to get Yang Yuhuan, he did not hesitate to use cheap means to break up the couple, and then took Yang Yuhuan into the palace.

After Yang Yuhuan entered the palace, Emperor Xuanzong of the Tang Dynasty was very kind to her, not only pampering her, but also making her an imperial concubine. However, Yang Guifei, who is in the deep palace all day long, is always unhappy. She misses everything in her hometown more and more. After knowing this, Emperor Xuanzong of the Tang Dynasty immediately sent people to Shuzhou, not only bringing back litchi, a specialty of Shuzhou, but also many gadgets with the characteristics of Shuzhou. After seeing all this, Yang Guifei finally smiled.