Beside a bustling construction site, Lao Chen, a lunch box stall owner, never yields to quick and excessive profits. He always insists on high-fire freshly stir-fried dishes, using only fresh and high-quality ingredients, silently guarding the dietary safety of the workers. After an industry storm, the greedy speculators are all punished, and the workers thoroughly distinguish right from wrong. The story praises Lao Chen's simple and pure artisan original intention, conveying a warm core of adhering to the bottom line and righteousness triumphing over evil.