Lin Xiaowei, a female college student in the history department in 2025, accidentally discovered an ancient jade pendant hidden in the diary left by her grandmother. When touched, it travels back to 1972 and becomes Lin Xiaowei, an educated youth of the same name who went to the countryside. At the same time, the "time and space correction system" in the jade pendant is activated - a special space connecting modern times and the 1970s. She discovered that her fate in this era was closely connected with a tragedy recorded in her grandmother's diary...
