YOU SAID:

Wait, you are not my sister?

INTO JAPANESE

待って、あなたは私の妹ではないか。

BACK INTO ENGLISH

Wait, don't you my sister.

INTO JAPANESE

待って、私の妹ね。

BACK INTO ENGLISH

Wait, my sister's.

INTO JAPANESE

姉の所です

BACK INTO ENGLISH

My sister's.

INTO JAPANESE

姉の所です

BACK INTO ENGLISH

My sister's.