Kim Hyejung spends her nights raving about The Flower of the Beast, a fantasy romance novel in which the protagonist, Ibelin Dott, must choose between the affection of three men: the crown prince, a handsome duke, and the master of the magic tower. Despite its cliché premise, the novel serves as a source of comfort for Hyejung. One night, Hyejung falls asleep from exhaustion and wakes up in the world of The Flower of the Beast. She now inhabits the body of Latte Ectrie, the daughter of a viscount and a supporting character in the novel. Facing unlikely odds of meeting the male leads on her own, Latte decides to devote her energy to writing boys' love stories until the female lead makes her entrance. A decade later, Ibelin is about to make her grand appearance at the crown princess' birthday party, and Latte is ready to watch the drama unfold from the sidelines. Little does she know that her antics have caused major changes. By chance, Latte has befriended Ibelin, and Arwin Hebrim—the third and most dangerous male lead—has taken an interest in Latte instead!