In the last years of the Ming Dynasty, natural disasters occurred frequently and troubled times were approaching.
Lin Yuetang, the reborn genius Jin Yiwei secret agent, brings with him the memories of his past life and his unique skills in treasure appraisal, and vows to protect the people in this collapsing world.
She rescued Shen Tieshan, a dull and upright frontier soldier. One of them was smart and fierce, the other was as stubborn as iron. They disliked each other and became dependent on each other for life and death.
In the face of famine, plague, and bandits, they opened up wasteland for farming, improved agricultural tools, exchanged treasures for food, and even built a "mechanized ballista" that transcended the times.
But the greedy county magistrate Zhao Cai has his eyes on their wealth and secrets...
