Shen Mo, a top military-industrial engineer of the 21st century, transmigrates into the Zhou Dynasty as the illegitimate son of a disgraced official, exiled to the frontier. Along the three-thousand-li exile route, barbarian cavalry lie in wait, while political enemies are determined to wipe him out. In this desperate situation, the System activates! Salt-making methods, iron-smelting techniques, gunpowder formulas, steam-engine blueprints... In this Iron Age, modern technology is a whole dimension above anything they can imagine!
