In 1984, in a coastal fishing village, Lin Chaosheng encountered a temporary breach of marriage promise by the Shen family when going to welcome the bride, and instead married the deeply wronged adopted daughter Shen Wantang. Shen Wantang has special scales behind her ears, and the old dowry fishing net she brought unexpectedly awakened spiritual power, recognizing Lin Chaosheng as its master. Relying on the continuously upgrading spiritual net, Lin Chaosheng goes out to sea for coastal fishing, harvesting all kinds of precious seafood and seabed objects, and striving to improve his family's life. Facing the calculations and demands of others, Lin Chaosheng guarded his family's stability and slowly healed Shen Wantang's inner inferiority and timidity. The two supported each other and made a promise to stay together for life in a belated wedding.