Before his death, his father said: "The late Emperor gathered craftsmen from all over the world to build the mausoleum. Our family's craftsmanship was practiced there." With these words, Ying Yu fled into the mountains. Twenty-three years of survival in caves, passed down from generation to generation. When she buried the pottery pot with four lines of characters engraved on it back into the mine, she knew that although the era of the late emperor was far away, the skills and roots were still there.