Reborn into a second life, Shen Changhe sells his fishpond and moves with his wife and two daughters into a stone cave in the mountains behind their home. Unexpectedly, the fishpond collapses, and the fish inside swim back to him through an underground river! Using the cold spring inside the cave, he raises fish and grows and sells melons, rebuilding his livelihood from scratch. But just as life begins to improve, jealous relatives come knocking. Facing one scheme after another, he must protect both his hard-earned family business and the wife and daughters who depend on him.