Jiwon Park was an ordinary cancer patient who worked the typical long hours of an overburdened business worker. However, when she dies, she awakens in a novel she heavily disliked: "The Midnight Flower." To her shock, she has replaced the heroine, Emeline da Ville. Unfortunately, becoming the heroine is not a blessing, as the story she is now part of is a tragedy where Emeline is ultimately executed for having a romance with the enemy empire's greatest warrior, the Emperor himself. Determined to survive as Emeline and change her fate, it isn't easy...