Have you heard of it? If, in the dead of night, you open your music player, put on your headphones, curl up alone under your blanket with your head covered, and listen to a single song on repeat. After looping it forty-four times and falling asleep, if you're unlucky, when you open your eyes again, you will no longer be lying in your own bed, but will have entered a strange space completely cut off from reality. That space... on the surface, it looks just like the places we see every day: your own bedroom, the living room at home, an underground parking lot, a bathroom, a basketball court, a construction site, and so on. But if you look closely, you'll notice—it's different... everything is different. ====This is the story of an ordinary person who, after gaining supernatural powers, gradually transforms and grows in the dead ends, ultimately reaching the extreme.