What if one day you finally 'meet' someone who will fill the void in your heart but in a fantasy world? Xia, who got into an accident, got inside to her favorite novel that she was reading entitled "In Love with the Dark Magician." But instead of becoming a female lead or a villain, just like she usually reads in Manhwa, she becomes the obsessive crown prince, who is the half-brother of the female lead.That will eventually die at the hands of the male lead after kidnapping the female lead just so he can have her on his own. Terrified of being beheaded, she will do what it takes to survive. And wisely use her knowledge about the novel and the secrets, especially about the crown prince's identity, and use it to her advantage to avoid her doom.