Others sell two meats and three vegetables for 12 yuan, but Lin Jianzhong insists on selling a single lunch box for 15 yuan. Old customers question him and competitors steal business, causing the restaurant he has run for six years to close because of it. Yet he always insists on buying vegetables on the same day and making them on the same day, with leftover food never staying overnight. Everyone says he does not know how to do business, until problems arise with the low-priced lunch box, and people gradually understand what these extra few yuan are really expensive for.