Isekai w strong female lead

I accidentally took possession of someone in a 19+ reverse harem novel.
The problem is
that I became Roxana Agriche, the older sister of the sub-villain. My damn father kidnapped the heroine's brother.
Now, is the only thing left to meet a terrible end from the vengeance of the heroine?
But what if I can avoid that horrible development?
“I'm also interested in this toy.”
'I'll protect you until you can get out of here safely.'
The heroine's brother, Cassis Pedalian, will definitely be able to pa

The existence of the second child, Karina, who was the successor’s youngest twin and the one who wasn’t as competent as her sibling, has been concealed by the people around her all her life.One day, she finds out that she only has one year left to live. So, she foolishly visited her fiancé, whom she has never had an exchange with.Along with the divorce papers that he longed desired for.“Frankly speaking, I want to stay here for a year.”“….. Are you crazy, Miss?”“I’ll break off the engagement.”Bu

FL had been in the position of Duchess for nine years while bearing with her quiet and indifferent husband, but all she had left was contempt and indifference,soon she was accused of having a love affair..She soon divorced her husband 7 asked him to return her dowry ..when her ex husband mocked her about what she will do with that little money she said that she is going to open a dessert cafe.

smth about a poor little girl being the forgotten royal princess - i forgot what this is about but i gave it a 5/5

divorced empress had baby with emperor 6 years ago and hides the baby and his eye colour

5/5
became younger sister of the male lead whose in a bl webtoon, she gets him to like her

3/5

i think mid i cant rmbr