Qin Jun, who died tragically in his previous life, was reborn and returned to 1996, where he unexpectedly awakened the power of animal language and undersea clairvoyance. With this unique skill, he started from a dilapidated fishing village, traveled across the seas, caught the best seafood, outsmarted snake-headed bullies, and even discovered a sunken ship, a national treasure. Faced with insidious and greedy competitors, Qin Jun uses the sea as a chessboard and fish as pawns, vowing to recapture all the Chinese treasures that have drifted into the deep sea. From the down-and-out eldest son who was kicked out of his family to the famous ocean guardian, in this life, he wants everyone to know that he has the final say in this sea.