An ancient poor young man unexpectedly travels through to modern times in a desperate situation, and mistakenly binds with a special system. Relying on modern free supplies, he solves the food and clothing crisis in his hometown. Slowly groping along, he discovers a huge information gap in prices and resources between the two worlds. While learning modern business rules, building supply channels, and clearing the two-way flow of materials, he returns to ancient times to lead the villagers in exchanging local mountain goods for rations and escaping the famine predicament. But the situation in the northern border changes drastically, and the crisis of scarce food and materials sweeps in. Relying on the modern mature supply chain, he shoulders the heavy burden of raising materials, running back and forth between the two worlds to start a survival journey across time and space.