In 2073 AD, a "tide of entropy" struck the world, and the former civilized order fell apart within three months. Skyscrapers are half-way into the clouds and rusting, neon tubes are dripping with sticky fluorescent liquid, and the city has become an absurd giant playground. The rules are no longer reliable - the soy milk in the breakfast shop will turn into liquid memory, the traffic light at the intersection can determine a person's lifespan, and the shadow will separate from its owner and start its own business. He wakes up in the ruins with no memory of his past and only an old coin that bends probability. In order to survive, he had to deal with the "city-state of words" powered by lies, avoid the "nihility worms" that feed on emotions, and deal with fanatical believers who call themselves "rule fixers." In this apocalyptic world, survival is the greatest absurdity, redemption is a lie to oneself and others, and the so-called truth may be just a rumor leaked from a parallel world. He struggled between reality and illusion, but gradually discovered that he was the key to this absurd drama.