Reborn into a medieval fantasy world, he expected hardship.

What he didn’t expect… was a shortcut.

Armed with modern engineering knowledge and a mysterious ability to replicate steel, he sets out with a simple dream:

Make enough money to retire early and live in peace.

At first, everything seems easy.

Steel weapons, tools, construction materials—he can produce them endlessly. With just a small workshop and a handful of workers, he’s already ahead of the entire era.

But reality hits hard.

No one can afford what he makes.

In a world without developed markets, weak trade networks, and rigid class systems, even infinite production means nothing without demand.

So if he wants freedom, he’ll have to build more than products.

He’ll have to build an economy.

Training slaves into skilled workers
Establishing workshops and supply chains
Navigating dangerous family politics
Turning nobles into customers and rivals into partners

What starts as a plan for retirement slowly spirals into something far greater—

A rising industrial force that threatens to reshape the entire medieval order.

Because in a world where no one buys…

He’ll create people who can.