YOU SAID:
once upon a time a devil killed the people the end
INTO JAPANESE
むかしむかし悪魔が人々を終わらせた
BACK INTO ENGLISH
Once upon a time, the devil ended the people
INTO JAPANESE
むかしむかし、悪魔は人々を終わらせた
BACK INTO ENGLISH
Once upon a time, the devil ended the people
That didn't even make that much sense in English.