I'm nearly thirty. Every day, I go back and forth between work and home, living an ordinary life. Mobile games are one of my few pleasures, but I have terrible luck and draw nothing but useless R-rank cards. One day, in an empty elevator, I touched something soft, cold, and invisible. Not long afterward, a gray mist began appearing before my eyes. As it grew larger and took shape, my ordinary life began to slide toward the abyss, and I was led to a door concealing the truth about this world.
