1) Languages are translated automatically, unless the characters deliberately choose to not be translated. So yes, they can choose to only be heard in their original language, but it wouldn't happen by accident.
2) Yukari would be app-able, though her boundary abilities would be limited to what's actively known about them in canon, and couldn't work to access the Animus (also player permission for boundary-hopping would be necessary when applicable). Also, the Animus frown on too many space-influencing shenanigans, so boundary-manipulation might not always work perfectly (though at the player's discretion).
3) Unfortunately not, inanimate objects have a hard time pressing the buttons on the PCDs. ♥
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1) Languages are translated automatically, unless the characters deliberately choose to not be translated. So yes, they can choose to only be heard in their original language, but it wouldn't happen by accident.
2) Yukari would be app-able, though her boundary abilities would be limited to what's actively known about them in canon, and couldn't work to access the Animus (also player permission for boundary-hopping would be necessary when applicable). Also, the Animus frown on too many space-influencing shenanigans, so boundary-manipulation might not always work perfectly (though at the player's discretion).
3) Unfortunately not, inanimate objects have a hard time pressing the buttons on the PCDs. ♥