The Mermaid-Blessed Fisher King

Fisherman Shane Lane, gambling, 500,000 debt. His wife/daughter jumped into sea; he perished. A Mermaid granted him Supernatural Ability to see fish and swim freely, for rebirth. Shane Lane used ability to catch seafood, paid debt. Conspired against by fishing tyrants and elder brother, he saved relatives. Founded Fishery Market, fishing fleet, built roads/schools, leading fishermen to prosperity. Mermaid left. Shane Lane became respected leader, enjoyed wealth, told legend.