Lu Qingran, a successful department store manager from the twenty-first century, dies in a car accident and transmigrates into the body of a fifteen-year-old peasant girl with the same name in the Yong'an Dynasty. The original owner was the daughter of Lu Dayong and his deceased first wife, Li Taohua. After her mother's death, Lu Dayong remarried Yao Shi, who brought her daughter Lu Qingqing into the family. Lu Qingran was mistreated, forced to live in a dilapidated woodshed, and starved while her stepmother and stepsister lived in comfort. The central conflict arises when Lu Qingqing refuses to marry into the impoverished Yan family, having coerced the Lu family into accepting a betrothal gift. To avoid returning the silver, the Lu family forces Lu Qingran to substitute for her stepsister. Lu Qingran agrees on the condition that she sever all ties with the Lu family, a demand the greedy relatives eagerly accept.
Upon entering her new space, Lu Qingran discovers that her entire twenty-first-century department store has accompanied her, serving as a spatial dimension she can enter at will. The store contains everything from cosmetics and clothing to a fully stocked supermarket and a modern apartment on the seventh floor, which mirrors her own unfinished home. This space provides her with food, hygiene, and resources unknown in the ancient world. She marries Yan Zihào, the eldest son of the Yan family, who had been driven out by his greedy elder relatives and now lives in poverty with his parents and four younger siblings. Despite their lack of material wealth, the Yan family is kind, hardworking, and respectful. Yan Zihào, a handsome and intelligent young man, treats Lu Qingran with dignity and devotion, promising her a monogamous life together.
The turning point in their fortunes occurs when Lu Qingran uses her spatial knowledge to find ginseng on Mount Siwang. She sells the root to a local pharmacy for twenty-five taels of silver, a fortune for a peasant family. With this capital, she and Yan Zihào begin a business selling jīcōnggū, a seasonal wild vegetable, to a restaurant in town. The venture is highly profitable, allowing the Yan family to improve their diet, buy refined rice and millet, and plan for home repairs. Lu Qingran’s modern business acumen and the endless supply of goods from her space, which resets daily, ensure their sustained prosperity. As their wealth grows, they face envy and gossip from villagers, including Lu Qingqing, who regrets forcing Lu Qingran into the marriage. The story follows the Yan family’s rise from destitution to stability, highlighting the deepening bond between Lu Qingran and Yan Zihào as they navigate village politics and build a life together.
