: The .rar extension indicates a WinRAR archive. Within the scene, HOODLUM typically releases games as ISO images packed inside these archives. Common "Write-up" (NFO) Details

: HOODLUM is a well-known warez group that specializes in "cracking" digital rights management (DRM) to make games playable without a legitimate license or launcher (like Steam).

Are you having with the installation, or were you looking for a gameplay guide for Oninaki?

: Mount the resulting .iso file to a virtual drive or burn it to a disc. Install : Run the setup.exe to install the game.

: This file facilitates copyright infringement, which is illegal in most jurisdictions.

: Copy the contents of the HOODLUM folder (found on the mounted image) into the game's installation directory, overwriting the original files.