Tide-catching blogger Shen Yan transmigrates to become the legitimate second-branch son of the exiled Shen family in a fishing village of Great Chu, and is forced by the first branch to take his cousin's place for a sea sacrifice on Wusheng Island. Seizing the opportunity to split the family, he takes his parents to the island, uses modern skills to survive on the deserted island, wipes out the Wokou vanguard with toxic smoke and traps, and intercepts intelligence about three hundred Wokou slaughtering a village. The county magistrate flees in abandonment, while Shen Yan uses bamboo spike roadblocks, fierce fire oil, and bamboo spear formations to annihilate three hundred real Wokou with zero deaths among fifty villagers. Thereafter, he makes salt, fires glassware, builds concrete cities, plants potatoes, manufactures cannons, and builds the Galleon warship "Haiping", receiving the title of Baron of Zhenhai, building Haiping City, and finally routing the Wokou fleet with simultaneous ship-cannon fire, pointing straight to Devil's Island.