On the continent of Aethos, divided by the Sea of Mists, young Lin Mo inherits a dilapidated fishing port amid the coastal ruins. When the sails of another world rise and spices, magical crystals, and forbidden technology begin flowing along the sea routes, he starts with a single rusted ship anchor and measures the Seven Seas with merchant vessels, making the ports his chessboard. From patching a pier with rubble to monopolizing transoceanic trade routes, from bonfires fending off pirates to commanding fleets that breach city-state walls, his port rises amid the smoke of commercial warfare to become an ironclad metropolis. As the old kingdom's gold coins clash with the firearms of new powers, this journey that began in a fishing port will ultimately rewrite the seafaring age of the entire continent.