With a hacked Switch (Atmosphere/AMS):
Remove the SD card and insert it into your PC. Navigate to:
SD:/JKSV/Rune Factory 3 Special/010081C0191D8000/ Rune Factory 3 Special -010081C0191D8000--v0--U...
Inside, you’ll see files like:
If you arrived here because you want to do something with that Title ID, follow these steps. With a hacked Switch (Atmosphere/AMS): Remove the SD