Zhao Haicheng has been frail and sickly since childhood, and his mother died early. To cure Zhao Haicheng's illness, his father, Zhao Dehai, worked hard as a laborer all year round and passed away from exhaustion. Before his death, Zhao Haicheng's father left behind a mysterious sea chart heritage, which enabled Zhao Haicheng to gain the ability to see seafloor treasures and avoid dead ends at sea. Taking advantage of the fact that Zhao's father's body was not yet cold, Zhao Deshan forcibly seized the family property, forced Zhao Haicheng to sever family ties, and drove Zhao Haicheng onto a broken boat. Zhao Haicheng ventured alone into Ghost Crying Sea and turned the tables all the way. Chen Yu firmly and steadfastly accompanied him, and the two operated together. Faced with the suppression from Zhao Deshan's family, the ruffian Daoba, and Jin Ye of Haibao Firm, Zhao Haicheng relied on the sea chart heritage, wisdom, and courage to gradually fight back, guard the sea route left by his father, and carve out a life of his own.