In the late 1950s, a young female worker in a large state-owned factory in Chongqing had a bright future, but a letter from home completely changed her life. In order to abide by her filial piety and serve her relatives, she resolutely gave up the luxurious life in the city and took root in a barren and isolated mountain village. For decades, she bid farewell to the prosperity of her youth, stayed alone in the mountain village, took over all the farming work, endured long periods of loneliness, and devoted everything she had to raising her four children. In the face of all kinds of oppression by evil forces, she was weak but not cowardly. She fought hard with wisdom and courage, safeguarded the family tradition and bottom line, and won the recognition of all the villagers. She did not care about personal gain or loss in her life. She became ill due to overwork for many years, but endured the pain, refused to spend money on medical treatment, and left all her resources and hopes to her family. She worked hard and finally trained her children to become talents. Many years later, his son Fang Yong led his neighbors out of poverty and became rich, giving back to his hometown; his beloved third daughter established herself in the metropolis and lived the life her mother longed for. This mother who dedicated her whole life ran out of oil and passed away early, leaving the world with endless sighs, interpreting the most selfless and profound maternal love and life regrets.