In the last years of Guangxu, the Forbidden City was bleak, and the tentacles of the great powers extended their tentacles to the Chinese treasures. Yin Zhiwei, a strange woman from the Imperial Academy, was obsessed with the oracle bones of the Yin Ruins. She actually got a glimpse of the stress of bronze casting from the mysterious cracks in the thousand-year-old tortoise shell. When the "Si Mu Wu Ding" became the coveted target of the great powers, she joined forces with Zheng Mo, a master of epigraphy and stone, and Lin Zheng, a material idiot who had returned from studying abroad. They used cracks as a "code book" to challenge the greed of the predators with empirical science. This is not a treasure hunting adventure, but a civilized scientific defense battle. Using tortoise shell as a shield and stress as a sword, Yin Zhiwei searched for the power of protection in the remnants of ancient relics, and ultimately promoted the birth of China's first "Cultural Relics Protection Charter", proving that science and wisdom are the strongest tripods to protect the heritage of civilization. A legend started by cracks, a history of civilization protection written with material mechanics.