Shen Qingcheng, a 31st-century energy engineer, accidentally travels through time during a spatial experiment and becomes a dying refugee in a disaster-stricken refugee camp of the Great Liang Dynasty. To return to her own time, she must complete an S-rank intertemporal restoration mission. Using advanced technological equipment from her system space, she cures the plague and leads the refugees in saving themselves, earning the trust and support of the puppet emperor, Xiao Muqing. Facing repeated obstruction and framing by the powerful minister Zhao Chong, Shen Qingcheng uses technology to overcome every challenge. After eliminating the corrupt officials, she gradually introduces high-yield crops and industry to Great Liang and establishes the Royal Academy of Sciences. Ultimately, she leads the dynasty toward revival, completes her mission, and returns to the 31st century.