Watashi wa Cinderella ni Korosareta

Charlotte lives a happy family life with her kind and lovely sister-in-law, Cinderella. One day, however, she is accused of assassinating the king and is executed. It was Cinderella, of all people, who framed her for a crime she did not commit. Charlotte was supposed to have died, tormented by regret and fear. However, she wakes up again and returns to the world before she was killed...⁉ This is a "loop suspense" in which she swears revenge on her sister!

(Source: Hakusensha, translated)