『おじゃましま～す！』 Is this something taught to Emma by Charlotte? Because there isn't really anything similar in the British culture, at least nothing as established, so unless she was specifically taught to say this when entering a Japanese home as a guest, she would probably not say anything. Oh, unless she's spontaneously mimicking her elder sister? But it's not the easiest Japanese phrase to pronounce, so in that case she would probably have made some mistake...
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『おじゃましま～す！』
Is this something taught to Emma by Charlotte? Because there isn't really anything similar in the British culture, at least nothing as established, so unless she was specifically taught to say this when entering a Japanese home as a guest, she would probably not say anything. Oh, unless she's spontaneously mimicking her elder sister? But it's not the easiest Japanese phrase to pronounce, so in that case she would probably have made some mistake...