Kardinal, a researcher who loves light novels, had been reincarnated as the villainous daughter of an otome game. Her banishment flag is raised, but oblivious to the game's storyline, she doesn't know how to overcome or avoid it. She makes the critical decision to live on her own and become a villainess until the very end! She'll rise up in this unknown world embracing her new role.

Altina who's fond of books starts pretending to be a mute in order to escape the imposed image of her as a "perfect lady" role that's set-up by her older brother and older sisters.

However, that being said, that pretend act will soon be discovered by no other than the head librarian, sir Shijar himself?!

"I'll annul our engagement!" My fiancé suddenly declared?! Apparently he's in love with the recently transferred count's daughter and is planning on making me the villain in order to annul the engagement. Although I have no lingering attachments about the engagement, I do have to claim a hefty consolation fee don't I?