YOU SAID:

He is going to the store, hence he will buy me some food, in that manner he is Japanese or Chinese, I am from Mexico

INTO JAPANESE

彼は店に行くので、彼は私にいくつかの食べ物を買うだろう、そのように彼は日本人か中国人か、私はメキシコ出身です

BACK INTO ENGLISH

He will buy me some food because he will go to the store, so he is Japanese or Chinese or I am from Mexico

INTO JAPANESE

彼は店に行くので私に食べ物を買ってくれるので、彼は日本人か中国人かメキシコ出身です

BACK INTO ENGLISH

He is Japanese or Chinese or from Mexico because he buys me food because he is going to the store.

INTO JAPANESE

彼は店に行くので私に食べ物を買ってくれるので、日本人か中国人かメキシコ出身です。

BACK INTO ENGLISH

He buys me food because he is going to the store, so he is Japanese or Chinese or from Mexico.

INTO JAPANESE

彼は店に行くので私に食べ物を買ってくれるので、日本人か中国人かメキシコ出身です。

BACK INTO ENGLISH

He buys me food because he is going to the store, so he is Japanese or Chinese or from Mexico.