Lin Zheng, China's top scientist, accidentally traveled to the war-torn Nara era of Japan with the "Xuanyuan" nanocore system. Starting from surviving on a desert island, he relied on scientific and technological knowledge that spanned a thousand years to smelt steel, make firearms, develop water conservancy, and run education.
Cold-forged steel clashed with the tachi, and volleys of muskets crushed the samurai charge. He built cities and established a country, wooed wealthy families, alienated the court, and swept the islands with technology and an iron fist. While the nobles of Heian Kyo were still chanting Japanese songs, his tanks had already rolled over the threshold of the Imperial Palace.
This is the ultimate crushing of civilization over ignorance, the iron-blooded conquest of rationality over myth. See how the protagonist reshapes the pattern of East Asia with the torrent of steel, and builds an unprecedented technological empire in the land of cherry blossoms and blood and fire!