The gold shop owner is a man in the county town who buys Shi Ran's gold bar. He examines the 50-gram gold bar, confirms it is real gold, and weighs it. He offers a recycling price appropriate for the time, paying Shi Ran 2750 yuan. This transaction provides Shi Ran with cash to cover expenses such as hotel, food, and shopping. He is a brief but necessary character for Shi Ran to obtain funds.