Exiled Lord: Iron Empire from Scratch

Waking up is the beginning of hell. As the second son of an earl family, Paul Greyman was "exiled" to the most desolate place in the north, the North Wind Outpost, due to family strife. There is no splendid aristocratic world here, only the freezing temperature of minus 30 degrees, warehouses that are about to run out of food, and waves of monsters in the black forest that are ready to devour anyone at any time. Everyone thought he would die this winter. But they didn't know that Paul brought a gift from the earth - [Civilized Mall System]. No food? I have an improved version of cold-resistant potatoes, with a yield of 1,000 kilograms per acre, which the serfs can eat to their fullest! No walls? I have Portland cement and I can rise up overnight and build a fortress that will never fall! No weapons? I have a stainless steel heavy crossbow produced by the assembly line, so that mortals can hunt down the extraordinary knights who are above us! No magic? I have blast furnace steelmaking, steam engines, and black powder, and I use the rolling wheels of industrialization to crush all arrogance! "Sir, the Duke of the South has declared war on us!" Sitting in the warm spring-like heated room, Paul put down the black tea in his hand and glanced at the Iron Legion ready to go out the window. "Then let him see what a dimensionality reduction strike is." This is a legend about a rational time traveler who quietly farmed in a low-demon world and used science and steel to build a huge empire. No Holy Mother, no harem, no seeking death.