YOU SAID:
butterflies eat humans and have diarrhea afterwards
INTO JAPANESE
蝶は人間を食べ、その後下痢をする
BACK INTO ENGLISH
Butterflies eat humans, then diarrhea
INTO JAPANESE
蝶は人間を食べ、次に下痢
BACK INTO ENGLISH
Butterflies eat humans, then diarrhea
That didn't even make that much sense in English.