Have you ever thought what would happen if your curiosity turned into your reality? What will happen if your instincts turn out to be your fate? "The Perfect Book"....a legend that is believed not to be true but rumors has it's own territory..... Y/n and Kim Taehyung come to know that they belong from a legend. Y/n's greatest enemy from the legend is back to get her. How will Taehyung protect what is "his". Will the world face another destruction? Read to get to know more!!