After Shen Zhiyi traveled to the countryside in 1975, she struggled to adapt to a strange environment and relied on her skills to gain a foothold in a difficult life. She met Lu Yanli, an educated youth in the village, by accident, and the two gradually intersected in their daily interactions. As time goes by, they discover each other's secrets, and at the same time they are involved in some past events and disturbances in the village. Under the tide of the times, the two supported each other, faced the challenges of life together, explored the secrets behind the copper lock, and gained sincere feelings.
