Wuji in the Song Dynasty

In the first year of Zhenghe, there was an ancient battle road in Xiongzhou. Four graduate students woke up in the dark. There is no signal for mobile phones, and the air is astringent that has been sealed for hundreds of years. Zhao Heng from the Department of Finance saw the direction of the smuggling chain from the serial number of a salt banknote, Shen Yao from the Department of Journalism uncovered the forged evidence from the shopkeeper's peripheral vision, Chen Ye from the Department of Public Administration read out who was behind the scenes from the speed at which the verdict was written, and Lin Wan from the Department of Music heard the signal of the deceased from the scratches in the brick wall. Four pairs of eyes, looking at the same thing, see four layers. They stood firm. The case was solved. Won. Then I discovered that the machine was not broken. Every gear is operating normally and every procedure is being executed in compliance. The result of operation is to crush people. It's not who is bad. It's just a design drawing. Substitution is useless. Then redraw.