Qianhu and His Stumbling Block

Reader: "Hello, what kind of article is this?" Author: "It's probably a story about black cutting into white and cutting into white, and white cutting into black and cutting white." Reader: "Excuse me, who is he?" Author: "Uh uh... Probably." Reader: "?" The author touched his head in embarrassment: "It's hard to describe in a word... It's hard to describe in a word..." Reader: "??" [The author went crazy and ran away] Reader Er Kangshou————