Yao Kun of Kunhang Technology plans to purchase vehicles as an annual meeting gift to give back to the hard-working employees. After signing the contract, the 4S store sales temporarily charged an additional fee, and after cooperation was hindered, they also published untrue remarks to mislead public opinion. Yao Kun rationally terminated the cooperation, chose merchants who kept their contracts, not only fulfilled the promise of rewarding employees, but also gave priority to cooperative partners who abided by integrity in large-scale procurement projects. The story revolves around the spirit of commercial contract, interpreting that trustworthiness is precious, and opportunistic cleverness will eventually pay a corresponding price.