Use a program like WinRAR or 7-Zip to extract the .rar archive.
Because this is a classic Japanese title, you may need to run the application using Locale Emulator (set to Japanese) if the text appears as gibberish. EROS_-_Banquet_Princess_Remake.rar
The original low-resolution sprites have been replaced with cleaner, sharper artwork that looks significantly better on modern monitors. Use a program like WinRAR or 7-Zip to extract the