Some volumes in these niche series were released with basic interactive menus or "game-like" interfaces for PC users.
The name of the featured individual or performer in this specific volume. Technical Interpretation of "((INSTALL))" Kansai Enkou 45 Chiharu %28%28INSTALL%29%29
Short for enjo-kōshū , a term used in Japanese culture to describe "compensated dating." 45: Represents the volume number in the specific series. Some volumes in these niche series were released
The file may be an .ISO or .MDS file designed to be mounted via virtual drive software. Kansai Enkou 45 Chiharu %28%28INSTALL%29%29
