Lin Zhitao, a modern-day logistics specialist, transmigrates into the body of a minister's daughter who has been convicted of a crime and exiled to a remote frontier. When assigned a household, she turns down the wealthy military families and deliberately chooses the impoverished family of the three Qin brothers. Using her family's ancestral peachwood hairpin, she awakens a portable space with the ability to identify fertile soil, cultivate seeds, and accelerate crop growth. The frontier is plagued by saline-alkali land, food and water shortages, and harassment from corrupt administrators, unscrupulous merchants, and northern bandits. She clears wasteland, improves the soil, channels water for irrigation, and cultivates sweet potatoes and medicinal herbs. Together with the three Qin brothers, she overcomes one crisis after another and builds a prosperous home in the desolate frontier.