YOU SAID:

Then my presence is to our mutual advantage.

INTO JAPANESE

その後、私の存在はお互い利益にです。

BACK INTO ENGLISH

Then, my existence is each other interests.

INTO JAPANESE

そして、私の存在はお互いの利益です。

BACK INTO ENGLISH

And benefit from each other is my existence.

INTO JAPANESE

お互いの恩恵、私の存在。

BACK INTO ENGLISH

The existence of the benefit from each other, I.

INTO JAPANESE

互いからの利益の存在私。

BACK INTO ENGLISH

There I benefit from each other.

INTO JAPANESE

そこからお互いの恩恵を受けます。

BACK INTO ENGLISH

From there will benefit from each other.

INTO JAPANESE

そこからは、お互いからお越し。

BACK INTO ENGLISH

From there, coming from each other.

INTO JAPANESE

そこから、お互いから来ています。

BACK INTO ENGLISH

From there, comes from each other.

INTO JAPANESE

そこから、お互いから来ています。

BACK INTO ENGLISH

From there, comes from each other.