Me ga Sametara Tougoku sareta Akujo datta

Sophia, a shy apothecary, has been abused by her stepmothers who calls her "shameless." One day, when she wakes up, she found her body has been switched with that of Violet, a villainess lady who was imprisoned for a serious crime! But it doesn't feel like a prison, with a soft bed, luxurious food, and plenty of free time to do research on medicinal herbs....... Sophia wishes she could spend the rest of her life in this place! And then she hears an unbelievable rumor, that her original body is going to make her social debut in the capital. While she is unable to grasp the purpose of the "girl" controlling her body, an assassination plot against the royal family begins to stir in the background!

"Vi… Vi…olet-sama, what are you doing?"
"You're smarter than I thought, aren't you?"
The duo of a villainess and an apothecary, whose positions are reversed, will challenge the hidden evil of the kingdom!

(Source: TO Books, translated)