Introduction to Laomendong: Laomendong is the ancient place name of the southern area of ​​Nanjing's Old City. Most of the people living there are common people, collectively known as Laochengnan people, and they speak authentic Nanjing dialect. Today, the Laomendong area has been transformed into a historical protection district, focusing on displaying traditional culture and recreating the original appearance of the south of the old city, becoming a popular tourist destination for folk culture.