Sang Zhixia, a PhD in agricultural science, unexpectedly travels through time and becomes the heir's wife of a marquis's household after her elder half-sister drugs her and forces her to take her place in an arranged marriage. On their wedding night, her new husband throws a divorce letter at her. Before she can escape, the marquis's household is confiscated, and she is forced to accompany the cold-faced heir, Xu Ao, into exile in the Northwest. Facing dilapidated houses, famine, and a whole family of demanding relatives waiting to be fed, Sang Zhixia refuses to cry or surrender to fate. Instead, she gathers medicinal herbs to save lives, makes charcoal to earn money, produces sugar from maple trees, clears wasteland, and grows crops. Against all odds, she transforms the bitterly cold land of exile into a prosperous granary.