In his previous life, Fang Xuan was killed during a global cataclysm of torrential rain and flooding after Chen Lingsu, the woman he had once pursued, and Zhao Wei, a dock manager, stole his supplies. Reborn fifteen days before the disaster struck, he awakens a game-like spatial interface. He decisively sells his house for cash and frantically stockpiles food, medicine, and equipment, purchases a yacht, and learns to pilot it from his instructor, Huang Xue'er. As predicted, the torrential rain arrives, floodwaters submerge the cities, and the world resets. Survivors are scattered across the sea on wooden rafts to fend for themselves. Relying on his spatial ability, knowledge from his previous life, and awakened powers, Fang Xuan gathers fellow survivors and fights mutated sea beasts and ruthless villains, struggling to survive across the vast ocean while searching for land and hope.