zip files from unverified third-party mirrors can contain unwanted scripts. It is recommended to scan the archive using tools like VirusTotal before extraction.
The archive Mesugaki-Hiyori-AndroidVersion-KeyTraducciones.zip typically includes:
Because these indie titles are originally released only in Japanese (often on platforms like DLsite or Fanbox), non-Japanese-speaking fans rely on groups like to make the content accessible.
Since this is a "sideloaded" app (not from the Google Play Store), your Android device will require "Install from Unknown Sources" to be enabled. Conclusion