Tells the story of Su Nian being reborn back to ninety-six, vowing to protect her daughter who was nearly used as collateral for a debt. She awakens the ability of the deep sea pupil, relying on the skill of seeing through the seabed to beachcomb and fish for rare treasures. From ornate lobsters to deep-sea catches, she builds her enterprise step by step, standing firm against her gambler father and local bullies, joining hands with partners to build a fleet and expand markets, rising in a counter-attack from a impoverished widow to the maritime queen ruling Su's Marine Industry, protecting her daughter's safe growth and reaching the peak of her career.