I,' the protagonist, had lung disease and always suffered from an illogical anxiety, and losing interest in the things 'I' used to enjoy, such as music, poems, and 'my' favorite stationery store Maruzen, then wandering aimlessly around the city.
肺を病んだ「私」は得体の知れない不安に始終苛まれ、それまで関心を持っていた音楽や詩、文具店の丸善への興味を失い、当てもなくさまよい歩く。