Qiong Yao's novel " Flowers Are Not Flowers, Fog Are Not Fog " was adapted from the Qing Dynasty's " Song of Everlasting Sorrow." Song of Everlasting Sorrow was a famous love poem that described the love story between Emperor Xuanzong of the Tang Dynasty and Yang Yuhuan. She adapted it into a novel and added more plots and characters, which became one of Qiong Yao's representative works.