A magical girl called Destinia, who once fought for humanity against dangerous monsters, has her light fade out of existence and gets reincarnated into a fantasy world. As she was from the early 21st century, she is in dismay that now she is in a medieval world full of magic. What is even more shocking is that she already knows that she is going to die an unjust death! Why? Because she read this all in a novel, of course! Now she has to try not to get killed as she has to navigate this world of make-believe.