The story happened near the Shuangjing subway station in Beijing. The female stall owner was aggrieved by the selective enforcement of urban management and expressed that she would fight to the end for fairness. When the urban management team forced her to close, she burst into tears and complained of social injustice. Even in the urban management team, she had to ask for fairness. But in the face of institutional chaos, she finally chose to compromise and continue the cat and mouse game. The old man is a Christian, is he helpless in obedience to fate? How many people's melody played by the Huqin sounded in the smog of Beijing?