I lost my parents at a young age, and thanks to incompetent adults, I worked myself to death. When I opened my eyes again… I had been reincarnated inside a novel. And of all things, I became a disposable extra—a spy from a notorious, ruthless family, destined to die before the main character even makes an appearance. My mission? To infiltrate the household of the story’s main villain, Duke Crost, as his fake daughter. “I refuse to die a second time just because I followed someone else’s orders.” This time, I know how the story unfolds. “I’ll betray Duke Pose and take Duke Crost’s side instead.” “I’ll reunite him with his lost family and stop his descent into villainy.” “And I’ll secure a powerful ally—someone who can protect me from Duke Pose.” Changing the original storyline won’t be easy. But this time… no matter what it takes— I will claim my own happiness.