Boku Ni Harem Sefure Ga Dekita Riyuu -web-dl 72... -hot Site

From that naming pattern, it seems to be a episode (likely episode 72 or a 720p indicator) of an adult/anime series, tagged with -HOT (a common release group or quality tag).

It looks like you're referencing a specific file or release label: Boku Ni Harem Sefure Ga Dekita Riyuu -WEB-DL 72... -HOT