In this chapter, the protagonist's thoughts are interrupted by the manager of the store where the protagonist works. The store manager, who introduces himself as "giri" , tells the protagonist that he has lost his glasses and that he should go to the nearest department store to get them. The protagonist, who has no idea what he's talking about, says that he'll go to get "sensei" . He thinks that all the girls in his high school are wearing colored glasses so that they can see everything with "bias and judgment." The protagonist says that women with big breasts aren't stupid and that colored glasses are just not good for government employees because they're lazy. He wonders where the store manager got his glasses, and he wonders if the protagonist is using the glasses as an excuse to speak his mind. He also wonders if sensei would say the same thing if she saw him through the colored glasses. The manager says that the store has many kinds of colored glasses from different periods, and that there are many different kinds of eyebrows in the store. He says that people actually buy colored glasses, which is why sales have been so slow in the past. He goes on to say that people have "biases against sound" and "prejudices against taste" when they look at themselves through colored lenses. He points out that bald men have a "stronger sex drive" than men who don't look like bald men. He adds that people listen to music that has a "bias against sound." He also says that there's a "colored mouthpiece"