A modern cashier time-travels to become a turbulent-era girl, Tao Tao, carrying a complete supermarket space with her, and survives in Qingshi Village with her father, Xie Lin, whose background is mysterious. The father and daughter guard the secret of the space, use items from the space to develop the village, save the common people, build sturdy walls, and repeatedly use supermarket items to successfully fend off external enemies, securing a peaceful sanctuary for the village. They lead the villagers step by step toward a better life.