Haven't watched Boarding School Juliet. I just saw a recap (Leaders Of Rival Dorms Are In A Forbidden Relationship) of it. Apparently Juliet Persia 'is the only daughter of the Persia household, a high ranking noble family from the West'. So I guess Juliet isn't Japanese? Or what?
But Juliet actually is speaking Japanese? Or what? (Like this: Why doesn't Kallen or Suzaku recognise Lelouch's voice when Lelouch speaks as Zero? Is Lelouch's Japanese perhaps that good?)