YOU SAID:

Help my little sister.

INTO JAPANESE

私の妹を助けます。

BACK INTO ENGLISH

Help my sister.

INTO JAPANESE

妹を助けるため。

BACK INTO ENGLISH

To help his sister.

INTO JAPANESE

彼の妹のために。

BACK INTO ENGLISH

To his sister.

INTO JAPANESE

彼の妹。

BACK INTO ENGLISH

His sister.

INTO JAPANESE

彼の妹。

BACK INTO ENGLISH

His sister.