I'm the Villainess, So I'm Taming the Final Boss

After her engagement to the prince falls apart, noblewoman Aileen suddenly remembers her past life-and realizes she’s trapped inside the world of a beloved otome game, cast as the heroine’s biggest rival. But her memories are full of gaps, like a poorly written fanfic, and one thing is clear: if she doesn’t act fast, she’s doomed. With the story’s hero-and supposed love interest-untrustworthy, she decides to take her chances with the game’s final villain instead.