Angnyeojiman Yeojuingongi Doegetseumnida

Reborn into a fantasy novel as a wicked character fated to meet an early demise, Minjoo - now Dahlia Margaret - has a lot on her plate right from the start. But at least she’s now free of her vicious high school bully, Sooyeon. Or is she? When Dahlia meets Flore, her estranged sister and the protagonist of the novel, she is shocked to find that the girl bears a suspicious resemblance to the classmate who tormented her. Now, driven by the desire to save her own life and also get revenge, Dahlia needs to make a powerful ally, and she has her eye on a handsome royal who just might be perfect for the job. However, a deal with this mysterious man might mean more than she bargained for...

(Source: Tappytoon)