I inherited a wasteland, but thanks to the system, I built a modern civilization there.

https://www.youtube.com/watch?v=6n9Zcdi8D9s

Summary

TL;DR — A civil engineer reincarnated into a young noble's body inherits a desolate wasteland territory and, using his knowledge of modern engineering and resource management, transforms it into a thriving civilization. He overcomes numerous challenges, including natural disasters, internal resistance, and external threats, by applying scientific principles and innovative solutions.

Key points

• The protagonist, a skilled engineer from modern Earth, awakens in the body of a weak noble in a fantasy world and is assigned a barren, debt-ridden territory.

• He leverages his engineering knowledge to develop essential infrastructure like cement, dams, wells, and roads, laying the foundation for a modern civilization.

• The introduction of steel production through a blast furnace revolutionizes tools and weaponry, significantly boosting productivity and defense capabilities.

• Gonchan implements advanced agricultural techniques, crop rotation, and sanitation practices, leading to increased food production and improved public health.

• He establishes a functional economy based on trade, standardized weights and measures, and eventually paper currency, attracting merchants and refugees.

• The territory's success attracts attention from powerful entities, including his own noble family, the imperial court, and a magical order, forcing him to defend his innovations and autonomy.

Takeaway — With knowledge, innovation, and perseverance, even the most desolate land can be transformed into a prosperous civilization, but such progress inevitably attracts powerful adversaries.