I'm kind of not sure how to explain it (since this did happen a while ago), but it's when I got to the part where you have to search for the lost key and when you get back to the school, they start speaking Vietnamese and It stays that way the rest of the time I played, even after the scene switch
i can help with that, some specific responses just flip the game language.so far i found two: one when first talkin with Oliver and another at the beggining of the key quest, when you first reach the school.
