Xie Qingyu, a modern woman, travels through time and becomes the adopted daughter of a marquis's household. Her adoptive parents force her to take her younger sister's place and enter the palace, sending her to her death. Carrying supplies stored in her own spatial dimension, she enters the palace just as years of famine approach, with locust plagues and epidemics wreaking havoc. Using her supplies and modern knowledge, Xie Qingyu defeats the locust plague, controls the epidemic, grows crops, and provides disaster relief. She helps Emperor Pei Yan suppress a rebellion and stabilize the imperial court. Her adoptive family suffers the consequences of their own actions during the famine. She reunites with her maternal cousin, Shen Zhixing, clears her father's name, and ultimately becomes Empress after Pei Yan bestows the title upon her, becoming a beacon of hope amid the chaos.