Chen Hai, a modern marine science expert, travels back in time to a fishing village in 1981. By a stroke of fate, he saves Lin Qingyin, a mute woman who has endured countless hardships, and vows to protect her. Using his professional knowledge, he dives into the sea to discover rare marine treasures, leases saline-alkali land to cultivate high-quality black pearls, and builds a successful business through hard work. Along the way, he lovingly cares for Lin Qingyin and helps her regain her voice. Together, they strive for a better future, gain wealth and sincere love, and eventually celebrate a grand wedding before building a warm and happy life together.