YOU SAID:

As to our Japanese friend, that’s more of a stumper.

INTO JAPANESE

私たちの日本人の友人に関しては、それはもっと困惑しています.

BACK INTO ENGLISH

As for our Japanese friends, it's even more perplexing.

INTO JAPANESE

私たち日本人の友人に関しては、さらに困惑しています。

BACK INTO ENGLISH

As for us Japanese friends, it's even more confusing.

INTO JAPANESE

私たち日本人の友人にとっては、さらに混乱します。

BACK INTO ENGLISH

For us Japanese friends, it's even more confusing.

INTO JAPANESE

私たち日本人の友人にとって、それはさらに混乱を招きます。

BACK INTO ENGLISH

For us Japanese friends, it's even more confusing.