Living in a fairytale sounds like a beautiful fantasy, but for the protagonist of this story, it transforms into a ghastly nightmare. Following her puzzling demise, Rinko is reincarnated as Raeliana, a wealthy heroine in a book, but she is keenly aware of her fate: being murdered by her fiancé. Therefore, she devises a plan to survive, enlisting the help of a malevolent duke and concocting a fake engagement. Will she be able to alter her predetermined destiny?