Lin Mo, the protagonist, was a farmer from a fishing village in the south. He was sentenced to five years in prison after taking the blame for the village Party secretary. Behind bars, his photographic memory and logical reasoning helped him expose a corrupt scheme involving prison guards and save Chen Tianxiong, a crime boss who was being hunted. Impressed by Lin Mo’s intelligence, Chen entrusted him with Yihetang, a gang on the verge of dissolution, and gave him a dilapidated dockside warehouse as a starting point. After his release, Lin Mo spent three months using data analysis to optimize the warehouse’s logistics and monopolize local seafood transportation. He then used business negotiations to dismantle the surrounding small gangs, uniting them through shared interests rather than violence. Within six months, he had brought the city’s underworld under his control, becoming a “mastermind” no one dared underestimate.