After being reincarnated into her younger sister’s favorite over-the-top novel, Idel finds herself playing the role of a treacherous villain destined to betray the Duke who raised her. Knowing that her tragic fate awaits her, she decides to act like a minor villain and escape before things go wrong. However, her plans begin to fall apart when she unexpectedly becomes determined to protect her younger sister, while the novel’s chaotic characters and absurd twists make escaping far more difficult than expected.