This looks like Japanese Romaji (Romanized Japanese). Based on common light novel, manga, or web novel title conventions, this is likely the beginning of a longer title. A probable full title could be:
The final afternoon, rain lashed the library windows. No one else came. I found her sitting on the floor between the poetry shelves, knees drawn to her chest, tears sliding silently down her cheeks. Toshoshitsu No Kanojo Seiso Na Kimi Ga Ochiru M...
: The title highlights the "seiso" (pure or neat) nature of the female protagonist. Much of the plot centers on the gradual "fall" or corruption of this pure persona as she becomes involved in a secret relationship. This looks like Japanese Romaji (Romanized Japanese)
Toshoshitsu no Kanojo: Seiso na Kimi ga Ochiru made - The Animation * TV Series. * 2020– * 2h. Toshoshitsu no Kanojo: Seiso na Kimi ga Ochiru made - IMDb No one else came