A folk song echoed on the Shandong Plain. This is the song of Luo Xiaojia, a Yunnan Yi girl who was trafficked to the Shandong Plain at the age of 17, and now she has lived in rural Shandong for seven years. After coming to Shandong, she was forced to marry a young farmer and received a marriage certificate. The film documents her family life in the unfamiliar Shandong countryside, her thoughts about her hometown and her views on destiny. Luo Xiaojia's tenth year in Shandong Province, she finally won the right to go home. After a journey of 4,000 kilometers, she returned to her hometown of Yunnan and saw her mother who she missed day and night. But she was caught in a contradiction. Finally, she asked her mother to sing a lot of folk songs for her, and she returned to Shandong with those sad folk songs.