Always run a virus scan on the archive before and after extraction.

Use the official 7-Zip (Windows) or The Unarchiver (macOS).

Digital photo books (often called "ROMs") sold by independent creators at conventions or via subscription platforms like Patreon or Fantia.

In the context of "Yummy_Girl," this is a common naming pattern for:

These files are often password-protected to prevent automated scanners from indexing the content.