Destined to Be Dumped and Sold to a Brothel, I Aim to Become a High-Class Courtesan!

The protagonist suddenly realizes she’s been reincarnated as Natasha, the villainess of a novel! If the story follows its original course, her fiancé will break off their engagement and she’ll be sent to a brothel. …Even though she’s terrified, this fate seems impossible to escape. “In that case… I …