If you're interested in reading the series, I encourage you to explore official channels and support the creators by accessing their work through authorized platforms.
The topic you provided, "Toshoshitsu no Kanojo" (), translates to "The Library's Friend" or "My Library Girl." However, I believe you might be referring to a Japanese light novel and manga series called "Toshoshitsu no Kanojo" or more specifically, "Toshoshitsu no Kanojo: Seiso na Kimi ga Ochiru made" (). toshoshitsu no kanojo seiso na kimi ga ochiru m free
The light novel series has been praised for its character development, storytelling, and illustration. The manga adaptation has also received positive reviews for its artwork and faithful adaptation of the original story. If you're interested in reading the series, I