YOU SAID:

mi is from a different nation and he's a brother from another mother also he's not japanese

INTO JAPANESE

ミは別の国の出身で、彼は別の母親の兄弟でもあり、日本人ではない

BACK INTO ENGLISH

Mi is from another country and he is also the brother of another mother and is not Japanese

INTO JAPANESE

ミは別の国出身で、彼は別の母親の兄弟でもあり、日本人ではありません

BACK INTO ENGLISH

Mi is from another country and he is also the brother of another mother and is not Japanese