After losing her parents at a young age and working herself to death because of the cruel adults around her, a woman wakes up to find herself inside a novel. Unfortunately, she has become a minor character destined to die before the main story even begins—a child spy from a family known for its cruelty. Her mission is to pose as the fake daughter of the story’s main villain. Refusing to die again by following other people’s orders, she decides to use her knowledge of the novel to change her fate, side with the villain instead, help prevent his downfall, and find a way to protect herself and finally achieve happiness in this new life.