Lin Mo, an honest and dutiful villager in a coastal fishing village, finally partnered with his father's friend Lin Dahai to buy a fishing boat. While trawling, the two encountered the legendary Dragon King causing trouble in the sea. Lin Mo suffered betrayal by Lin Dahai and was left abandoned at sea. In his despair, Lin Mo saved an injured little dragon girl, who silently repaid his kindness. From then on, whenever Lin Mo cast his net, fish and shrimp from all four seas eagerly swam into it on their own. After returning to the village, Lin Mo made a quiet fortune, only to face his childhood sweetheart village belle breaking off their engagement to marry the village tyrant's son, along with petty villains from the same village growing envious and scheming against him, coming to his doorstep to suppress and frame him, while his uncle rode the coattails and kicked him when he was down. The little dragon girl appeared with the ancient sea clan, helping Lin Mo achieve immense wealth through coastal trawling, slapping the faces of all snobbish petty villains, and rising to the pinnacle!