I'm the Villainess, So I'm Taming the Final Boss follows Aileen Lauren Dautriche after her engagement to Crown Prince Cedric Jeanne Elmir is annulled so that he can be with Lilia Rainworth. The humiliation is only the beginning: in that moment, Aileen regains the memories of her past life and realizes that she has been reincarnated inside an otome game as the villainess doomed to die in the story's final act.
Rather than accept that fate, Aileen decides to change the script entirely. Her bold answer is to court Claude Jeanne Elmir, the game's last boss, the proclaimed "Demon King," and Cedric's half-brother, and win him over by proposing marriage. Claude, however, has little reason to trust her motives, and Aileen must keep pressing forward against his suspicion, her own bad reputation, and the dangerous politics surrounding the royal family.
As Aileen moves deeper into the conflict, she becomes tied to Claude's wish to build peace between humankind and demonic beasts. Caught between royal politics, a doomed role, and a bond that could alter both of their futures, she fights to rewrite her fate before time runs out.
