I'll Be The Grand Duchess IBTG

Waking up as a non existent character, what would you do? I, who has dreamed of becoming the Villainess, suddenly became her daughter instead O_____O. The daughter who wasn't even mentioned in the novel!!! Tch, my father is a crazy coldblooded male lead doesn't care about me!! My mother is the Villainess who is the bitchy wife of the male lead is actually a WHAT? Since the heroine still have second male lead and third male lead, I will take my daddy away! Because I dislike the thought of having marrying to someone else and have the sit of the Grand duke empty, I'll just become one myself.
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If you're the original artist of the picture I'm using for this book, please contact me to remove it instantly.

This is my original book, thank you for reading lol.