In Handan City at the end of the Warring States Period, three precocious young men huddled in the Proton Mansion - Ying Zheng, who has a photographic memory, Wang Ben, who has an untamed wolf nature, and Meng Tian, who is good at observing the world. When an escape on a snowy night forged their fate, no one would have thought that the frozen sand table would turn into a war map of China twenty years later.
From the crowning of blood and fire in Qinian Palace to the salt-and-iron massacre in Xinzheng City, from the dragon bone hexagram in Yunmengze to the ashes and beads in Linzi City, Ying Zheng and his best friends reconstructed the laws of war with world-shattering ingenuity: using fluctuations in salt prices to destroy the lifeline of Korean iron smelting, using star pattern steel technology to decipher the witchcraft in Chu, and using ice figurine tactics to tear apart the childhood trauma of the Yan Kingdom. And the figure of the mysterious craftsman Qing He always shines in the darkness - her star pattern etching technique, which she risks with her life, is not only the magic weapon that defeated the six kingdoms, but also the last fire of civilization in the book-burning catastrophe.
When Wang Bi discovered the star-patterned steel box of miniature engraved classics in the Xu Fudong ferry fleet, when Meng Tian secretly hid the mottos of hundreds of schools of thought on the bronze tree in the Lishan underground palace, when the dying emperor clutched half a piece of frozen millet cake - the peak of power Feng Yingzheng finally saw clearly: those childhood vows melted into war, the glimmer of humanity cast into classics, and the iron sand of thoughts sinking into the East China Sea, are far closer to eternity than the "ordered by heaven" on the jade seal passed down to the country.
