A human from the future unexpectedly transmigrates during an exploration of a black hole, plunging into a remote island off the coast of Qing China in 1855. At the time, the island is barren. Fishermen depend on the weather, their boats are crude, fishing is unregulated, and the salt industry has stagnated. The islanders struggle just to get enough to eat.
Armed with future technology and knowledge, he doesn't sit around complaining. Instead, he puts down roots on the island and starts with the basics of aquaculture. He improves farming techniques and standardizes production, turning scattered seafood harvests into a steady source of wealth. Next, he renovates old fishing boats and upgrades their navigation and fishing equipment, helping fishermen overcome their fear of rough seas and expand their fishing grounds. The island's fishing industry gradually grows to an industrial scale.
To pool resources and bring people together, he takes the lead in founding a fishing and trading association, coordinating fishing households and opening up sales channels so the island's seafood can reach the mainland. Building on the steady growth of the fishing industry, he takes the long view and turns his attention to the island's salt resources. He improves salt-making techniques and breaks through the limitations of traditional production, making sea salt another pillar of the island's economy.
From a stranger arriving on a destitute island to the leader who guides its people out of poverty and into prosperity, he wields the wisdom of the future like a blade and wears perseverance as armor. Step by step, he puts the island's resources to work and unlocks the secrets of development. Amid the turmoil of late Qing China, he carves out a path from subsistence to strength on this isolated island.
I think the writing is relatively logical and not mindless. Readers need to taste it themselves.