YOU SAID:

And thus, the main antagonist swore to wreak havoc and revenge his little baby sister

INTO JAPANESE

そして、主なアンタゴニストは、大混乱を招き、彼の小さな妹を復讐すると誓った

BACK INTO ENGLISH

And the main antagonists vowed to be confused and vowed to revenge his little sister

INTO JAPANESE

そして、主なアンタゴニストは混乱し、彼の妹を復讐すると誓った

BACK INTO ENGLISH

And the main antagonist was confused and swore to revenge his sister

INTO JAPANESE

そして、主なアンタゴニストは混乱し、彼の姉妹に復讐を誓った

BACK INTO ENGLISH

And the main antagonist was confused and vowed revenge on his sister

INTO JAPANESE

そして、主なアンタゴニストは混乱し、彼の姉妹に復讐を誓った

BACK INTO ENGLISH

And the main antagonist was confused and vowed revenge on his sister