Easygoing Territory Defense by the Optimistic Lord: Production Magic Turns a Nameless Village into the Strongest Fortified City

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Synopsis

Van, the fourth son of a powerful marquis, is a child prodigy with a secret: he’s a reincarnated Japanese salaryman. His family has high hopes for him until his magic awakens—it's "Production Magic," a skill deemed useless in a world that values combat. Banished to a tiny, decaying village on the edge of the empire, Van is unfazed. Using his "useless" magic to build massive fortifications, automated farming, and modern comforts, he begins turning his podunk exile into the most powerful city-state in the world, much to the shock of his former family.