YOU SAID:

oh you're my best friend in a world we must defend

INTO JAPANESE

ああ、あなたが守るべき世界で私の親友です

BACK INTO ENGLISH

Oh, my best friend in the world you should protect

INTO JAPANESE

ああ、あなたが守るべき世界の私の親友

BACK INTO ENGLISH

Oh, my best friend in the world you should protect