Lu Chenchuan possesses luxurious mansions, a fleet of ships, and immense wealth, yet he spends his twilight years utterly alone. His wife and daughter were swept away by the waves, becoming the lifelong regret he can never make up for. Unexpectedly reborn in the year 2000, Lu Chenchuan faces the wife and daughter he once hurt and resolves to change completely. This time, he no longer chases illusory wealth. Instead, with a newfound understanding of the ocean, he devotes himself to protecting his family. He unexpectedly unlocks the Ocean Collection System, which grants him a special ability every time he collects a rare marine creature. From turning his fortunes around by gathering seafood along the shore to building an empire in the marine industry, Lu Chenchuan makes amends to his wife and daughter while entering a fierce rivalry with Han Wanjiang, the ocean industry's dominant tycoon.