There was a severe drought in Yunmo City in March. The wells dried up and the crops withered. Magistrate Wu wanted to abandon the city with the grain. {Shen Qingci} tore up the escape documents in public, and stabilized the people's hearts by saying "it will rain after observing the stars for five days", and found the underground water source based on the map left by his father. When the locust plague suddenly came, she set up fire traps to protect food; when rogue bandits attacked the city, she set up an ambush to fight off the enemies; when the epidemic spread, she teamed up with Granny Lin to raise medicine to prevent the epidemic. When the court's reinforcements failed to arrive, Shen Qingci stood on the top of the city holding the gun left by his father: "Not an inch of land in the border city was lost, and there were many people!" Lu Yanzhi led his troops to follow, and the army and the people worked together to resist the natural disaster, defend the isolated city, and finally found a way out of the desperate situation.