Reverse Tower Dungeon

Aspiring novelist Tsurugiya Daichi struggles to make a living from his writing, working part-time while continuing to update his web novel. At the bookstore opposite his workplace, he unexpectedly reunites with his high school friend Himari Hinomoto, whom he parted from on bad terms. Just then, the world turns upside down: magic circles appear, skyscrapers sink, and building interiors are reversed. Monsters from Daichi’s own novel begin attacking, leaving Daichi and Himari to find a way to escape the inverted tower safely.