In his past life, Lu Jianguo spent his entire family fortune to marry the village beauty, yet raised another man's child for half his life. In the end, he was murdered by the two of them and his body was left in the sea. Reborn on his wedding day in 1980, he strikes back without hesitation—and unexpectedly awakens the Fish King System, gaining the miraculous ability to understand what marine animals are thinking! While others go to sea relying on luck, he has dolphins leading the way and schools of fish sending word! Wild large yellow croakers, premium star groupers, precious sea cucumbers—he brings them all in, earning a fortune from a single voyage. From a penniless fisherman to a ten-thousand-yuan household, and then to the undisputed King of the Coast, Lu Jianguo will not only make his enemies pay, but also protect his family, and lead the villagers to a better life through the sea.