Lin Chen, a food wholesaler, is sabotaged and extorted by Zhao Qiang, a purchasing manager. By accident, he establishes a connection with Qingyun Sect in a cultivation world where spiritual cultivation is nearing its end. Using compliant near-expiry food and modern security supplies, he trades for ancient artifacts, legally converts them into cash, and repays his loans. When evil cultivators launch an invasion, Lin Chen uses modern equipment such as drones and electric fences to repel them peacefully. With complete documentation and scientific appraisals, he proves his innocence, and trade between the two worlds steadily flourishes.