Lin Yan, a military engineer, transmigrates to Zhuo Commandery in the first year of the Zhongping era.
No System, no golden finger, just a hammer and a head full of metalworking blueprints.
He only wanted to scrape together enough to eat, but as soon as he entered the city, he ran into Liu Bei, who was still weaving straw mats.
He repaired a blade and amazed Guan Yu; modified a crossbow and cowed Zhang Fei; forged standardized short spears to form a square formation and repel the Black Mountain bandits; engraved range markings so old crossbows could hit their targets accurately from fifty paces.
Starting with a rusty plowshare, he made weapons for Liu Bei, trained village militias, crushed the Yellow Turbans, and fought the powerful clans.
While others vied for the realm with strategy and might, Lin Yan fought for it with furnace fires, a hammer, and a book full of future weapons: scale armor, triangular spears, repeating crossbows, things this age had never seen.
“Lord Xuande, you handle the battles. I’ll handle the smithing.”
From Zhuo Commandery to Anxi, from village militia to county troops, this is the story of a military craftsman helping Liu Bei forge a new Han dynasty.
