Introduction to Gejin Jade Banner Square: According to legend, there was a Luoyang man named Chang Dayong who liked peonies very much. He heard that the peonies in Caozhou were excellent, so he went to appreciate them and stayed in a garden. One day, while appreciating peonies, I met Gejin, a beautiful girl. She fell in love with her and thought she was a fairy descending to earth, so she couldn't sleep all day long. Unexpectedly, the man was affectionate and the concubine was interested, and they finally became a couple.