A few years ago, rumours circulated about a certain novel that had been designated a banned book due to its dangerous nature. The reason the book was forbidden was that those who read it disappeared without a trace and went into hiding. The protagonist also finds the forbidden book in a second-hand bookshop, and is transported to another world as if guided by the dazzling book. 'A naked ...... girl! What is ...... this situation?" In front of her eyes are naked elf girls...