Dried persimmon technician Zhou Ling disagrees with his cousin Qiao Man's quick sulfur-fumigation production model, taking his dividend payout to lease the barren Stone Slope and follow traditional ancestral methods for growing persimmons and making dried persimmons. Qiao Man creates numerous obstacles, wanting to use quick-made products to seize export orders. A spell of continuous rain hits, and the quick-made dried persimmons suffer widespread mold. Zhou Ling sticks to ancient methods, working hard to produce premium frost-coated dried persimmons and win the export order. After her defeat, Qiao Man suddenly wakes up, tears down the sulfur room, and follows Zhou Ling to learn traditional craftsmanship down-to-earth, realizing that good results require patience and sedimentation.