How Did I, an Engineering Student, Become a Rich Man?

[Travel + Farming + Relaxation + History + Management + No System] Others traveled through time and became princes, while he traveled through time and died of hunger. A farmer was on the run from the famine. The shack was leaking, the wild vegetables were covered with shadows, and the family of five only had a cracked hatchet left. The food for the past few days has been boiled wild vegetables in water, without even salt. There was no system prompt, no novice gift package, no hidden identity waiting for him to claim it. He only has a head full of engineering knowledge and a heart that is not willing to starve to death here. He started with three fish by the stream and went to charcoal kilns, lime kilns, bamboo charcoal, and ocean trade... Burn each kiln step by step and prop up a home It took him less than half a year to go from being penniless to earning forty taels a month, from being a foreigner to being the most ignored person in the village. The flames of the Battle of Jingnan are spreading across the horizon. There wasn't much time left for him, but he knew: the most valuable thing in this era has never been money.