Lilian McKellion, the girl who wanted to avoid a bad end, willingly went to the insomniac emperor in place of her sister, Laelin. She is tasked to help the sleepless emperor, who was cursed by a witch, by using her ability to induce sleep whenever she touches another person's body with her lips. Can Lilian survive being with the emperor, ‘Kael Rue Kaldorf?'