After their parents pass away, Lin Hai and his younger sister, Lin Xiaoxiao, depend on each other to survive. But their uncle, Lin Chuan, plans to sell Lin Xiaoxiao into marriage in exchange for a hefty bride price. Enraged, Lin Hai splits from the family, only to receive a dilapidated shack and a fishing boat that's nearly ready for the scrap heap. To his astonishment, however, the boat can take him to a mysterious sea teeming with countless rare fish, some of which have miraculous effects. The decrepit fishing boat can also devour materials to upgrade and evolve. As Lin Hai catches rare fish in these mysterious waters and builds his own business, he makes a comeback one step at a time, delivers face-slapping to his vicious relatives, and leads his sister toward a happy life.
