Blurb

[Black, White and Gray]

Caroline Raleigh, the legitimate daughter of the Duke Raleigh, was known for her little but evil deeds that she caused her adoptive sister. When her fiancé, had announced that he had a lover, who coincidentally was also her sister, she had started to not hold back anymorethat's at least whateveryone thinks.
But in reality, Caroline was someone who had gotten reincarnated as the antagonist from some novel she knew and made a deal with the female protagonist, the referred sister, who also had gotten reborn.