Yoon Haneul, who always aimed to please others, had a sudden realization when she woke up one day as Aila Mertensia, the villainous character from a book she wrote ten years ago. Even though she initially enjoyed the laid-back lifestyle of reading books endlessly, Haneul found herself trapped in a constant cycle of reliving Aila's role. However, Haneul was not familiar with how wickedness behaved, and her only chance to break free was with the help of Killian, a cryptic magician that arrived to offer his services. But the question remained: could Haneul trust him? To escape the cycle, she had to make a deal with Killian, who was dangerously charismatic.
