Ning Moqing transmigrated into a xianxia story, becoming a half-demon cannon fodder on the verge of life and death. To rewrite her doomed fate, relying on her knowledge of the plot, she teams up with the Demon Lord Yechen, stepping into past affairs of the Demon King and conflicts among immortal sects. She exposes scams, saves those trapped in emotional wounds, and gradually makes the notoriously unapproachable, cold and arrogant Demon Lord care for her. From single-mindedly fighting for survival to taking the initiative to protect each other, the two grow close amidst laughter, bickering, and perilous situations, jointly breaking free from established fates to find their own path home.