This is "Kokoro wa Itsumo Anata no Tonari" (Miyo Kiyokawa) from the Shueisha Bunko Cobalt Series. It's an old coming-of-age novel published in 1978. There's a crease near the table of contents, but otherwise, there's no particular damage. Please consider it. #MiyoKiyokawa #ShueishaBunko #CobaltSeries #Hairdresser #Chasing #ShowaRetro