Unfortunately I Was Born In A Shonen

In a time that the Empire, the greatest and mightiest nation that the world ever had, are at its apex and the world is in peace. Maryanne, a psychologist, is called by the empire to cherish one prisoner, one that was forgotten by the history, or better saying, one that was erased of history. When she was listening the prisoner life history she can't stop questioning herself of many incongruities. Why is necessary take care of someone taken out of history at first place? How this crazy old woman is a threat at the empire?. But there is one question that she is the most curious about. Why this old woman is so convicted that she is at a fictional series's world!!! ... (I don't own the image on the cover. Original link: https://pin.it/4q8Kq03)