In this chapter, we're introduced to the narrator's childhood friend, who's now a grown-up man. We learn that the two of them have been spending a lot of time together in the tub, and the narrator complains that they don't seem to enjoy each other's company as much as they used to. She tells the boy to stop rubbing her with his bare hands, and she tells him to stop doing the same thing to him, too. She also tells him that he's a "tickling man" , and that he should shake his "mino ru" .