Lin Wanqing returns in rebirth, determined to protect her two daughters. She accidentally acquires a hairpins that can shuttle between ancient and modern times, relying on diligence and craftsmanship to sell mountain goods to modern times, bring food and clothing back to ancient times, make eggs and embroidery business, take in poor sisters, and repair caves to prepare for famine. Facing difficulties, she does not bow her head, leads the children to live a prosperous and bitter life, and helps those around her get rich together.