Nunnally also uses "Watashi" and "Watakushi". In season one, when she's speaking with Sayoko, the student council members, and her brother, she uses "Watashi" to refer herself. But in R2, she uses Watakushi whenever she's talking to an audience and other Britannians. The same goes for Euphie. She only uses "Watakushi" during a formal event, talking to the soldiers, and to her sister sometimes.
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