Borrowing the afterword "Confucius took a broom and swept the floor politely", we explore how "gentlemanship" (knowledge, literati character, idealism) in the traditional sense has been trampled on, tested, and even regained new vitality in the trough under the pressure of reality. The protagonist Li Muwen fell from the elite of the ivory tower to a cleaner at the bottom of society. In the process of "sweeping the floor", he not only swept away the dirt, but also swept away the vanity in his heart. Finally, in the situation of "sweeping the floor politely", he found the most solid soil for "gentlemanship"
