After a plane crash, Chen Mo, a Ph. D. In agricultural economics from a prestigious university, woke up and found himself in a primitive area covered by giant trees. He unexpectedly obtained a sign-in system and was regarded as a "god messenger" by the local tribe. He was determined to use modern knowledge to lead the tribe toward civilization - hybrid rice sown at random made the barren land more productive, clay-fired pots revolutionized water storage methods, botanical knowledge improved poisonous fruits, and economic thinking built a salt mine trading network. In three months, the tribe went from being hungry to having abundant supplies. , And even used chemicals and "oracles" to dismantle the worship of the giant totem tree. When the priests rebelled to "offend the gods", they used homemade gunpowder to defeat their opponents, supported their cronies to establish a ruling system with "knowledge" as the core, introduced calendars, and set up schools. However, as the contact deepened, abnormalities gradually emerged: when approaching the heart of the giant tree, you can hear the hum of machinery, and the sap contains trace amounts of silicon... Is the establishment of this primitive dynasty a victory of knowledge or an observed dream? ? ?