The Japanese save data that remained in the initial state caused the game to start in Japanese. This update fixes the issue so that new installations will no longer include Japanese save data.
If you haven't changed the language yet, please either reinstall the game or manually delete the save file from your local files.
File to delete:
Bukkake Feeler > Bukkake > Bukkake_Data > SaveFile.es3
After deleting the save data, the game will start in English for regions outside Japan.