Chaekbinguineun Ije Jigyeopda

After being reborn three times as a book character and reviving a fourth time as a villainess in a dark romance, Rosetta Valentine has had enough. Instead of fulfilling her given role, Rosetta decides to live a normal life. The one thing holding her back? The fact that Elisha, her sister and the story's heroine, is destined for a tragic ending. In order to save Elisha, Rosetta swears to use everything at her disposal... including the male lead's brother. But will this villainess's plan succeed?

(Source: Tapas)