In the opulent chambers of a 19th-century imperial palace, a young woman opens her eyes to find herself trapped in the body of a child bride. The world around her is ripped straight from the pages of *Lady and the Beast*, a trashy R-19 novel she knows all too well. Now living as "Ancia," she faces a wedding night that, in the original story, ends with her character's suicide after glimpsing the cursed body of the monstrous Crown Prince.

But Ancia refuses to follow the script. Prince Blake is no terrifying beast—just a lonely, cursed boy destined to die at eighteen, covered in birthmarks that have made him a subject of horror rather than affection . Armed with memories of the plot, Ancia launches a quiet rebellion: shower him with unconditional love, build his shattered confidence, and prepare him to meet his true heroine, Diana, when the time comes. The plan is simple. Step aside once the curse is broken, and let the real love story begin. Yet as the prince clings to her with trembling hands and whispers, "Don't leave me," Ancia discovers the novel's most dangerous trap isn't a curse at all—it's the way a monster's desperate heart can rewrite every ending she planned .

Also known as: Goemul Hwangtaejaui Anaega Doeeotseumnida, 괴물 황태자의 아내가 되었습니다, I Became the Wife of the Monstrous Crown Prince.