In 2010, in a coastal fishing village in Fujian Province, 23-year-old Lin Hai had just graduated from a technical school and had repeatedly encountered obstacles in finding a job. His father, Lin Jianmin, is an honest fisherman, and his mother, Wang Xiulan, helps in the village canteen. There is also a 68-year-old fisherman grandfather Lin Dewang in the family. A family of four squeezed into an old stone house built in the 1980s and depended on the weather for their livelihood.
Just when Lin Hai was confused about the future, he accidentally went to sea and a mysterious "ocean treasure hunting system" suddenly appeared in his mind. There is no immortality and no cash rewards. This system can help him identify the hidden locations of seafood, predict tides, and judge the value of seafood.