He was originally a top engineer in the modern world, but once traveled through time, he became the eighth prince on the edge of the Yu Dynasty.
His mother was a humble palace maid with no power, and his brothers were competing for the right to inherit the throne. He was regarded as an abandoned son and demoted to a barren fief.
But no one thought that what he wanted was not imperial power, but a piece of land that no one cared about, and a large enough "design plan."
He repaired water conservancy, built workshops, cast iron armor, and trained strong soldiers. He organized the army into regiments, drew villages and towns into maps, and reshaped the empire from a thousand years ago according to modern rules.
When the court was in turmoil, foreign enemies invaded the territory, and the imperial city was on fire, everyone discovered that the most despised man already had an army of millions in his hands and controlled thousands of miles of mountains and rivers.
He doesn't ask about fate, only about time. The exiled prince is the one who makes the world work again.