Convenience store clerk Lin Acui accidentally traveled to the Huanyi Bureau of the Northern Song Dynasty to purchase palace maids, and faced the crisis of Jingkang's shame. Her portable power bank can predict the crisis and help her get out of trouble and enter the Changchun Palace. But when the battery was low, the power bank began to "make trouble", and Grandma Liu's strange behavior also made Atui aware of the secret behind it. In the secret passage of the palace wall, she met Chen Yang and learned that she was in a space-time experiment. After escaping from Bianjing, the new monitors of the base followed. Xiao Tao's identity was exposed. Everyone got to know Zhao Lei and started a life-or-death contest with the base cleanup team. From a small town in the south of the Yangtze River to Bianjing, they fought for survival and freedom under the complex situation of the Northern Song Dynasty, and wrote their own legends.
