Using a wide, round-tipped tongue brush, she meticulously scrapes away tongue coating, and the sight of white foam spilling out during the process feels intensely erotic. Each stroke of the tongue brush brings forth a gushing liquid from her tongue, creating a sensation as if something primal is being unleashed. Those sensitive to odors are shocked by the smell, some even choking from its intensity. Witnessing this scene firsthand, Tsugumi visibly becomes upset. When challenged to smell it herself with a playful "Go ahead, try it!", her deadpan response is simply the word "human." That single word brings everything into grimly satisfying clarity by the end.