Shen Zhao, a doctor of materials science in the 21st century, accidentally fell into the world at the end of the Warring States Period. He rescued King Qin Yingzheng at a critical moment when he was about to take office, thus starting a relationship that spanned two thousand years. He was not the chosen one to carry the system. He relied only on modern knowledge and the common items in his backpack - a telescope, a first aid kit, and waterproof matches - to survive in troubled times. He used papermaking, movable type printing, and gunpowder formulas as inspiration, but not to help tyrants expand their borders, but to ignite the fire of civilization: to enable farmers' sons to read and write, to enable women and children in Guizhou to leave their names in the world, and to turn the "unknowable" world into a fertile soil where everyone can "investigate things to learn"...
