Tokyo, the modern Japanese capital, is an ancient city in the world of Shin Sekai Yori. While Tokyo is a barren wasteland on the surface, it has a humid dungeon filled with dangerous creatures below. People who live in Japan imagine Tokyo as a kind of hell, as it is said to be highly radioactive.
- A third of the buildings in Tokyo were destroyed in the Nine-Day War (After normal people stopped hunting Cantus users, the Cantus users launched a counterattack. A group of less than a hundred of them rounded up eleven million people, and over the course of nine days they exterminated their enemies) and most of the ones that remained fell apart within a hundred years. Weathered by acid rain, the limestone dissolved and flowed into large underground spaces, creating limestone caves in mere centuries that would have taken tens of thousands under normal circumstances.
- There are dozens of large connected caves under Tokyo with even more smaller tunnels running alongside them. The caves are relatively close to the surface, with numerous levels built beneath them. These levels are accessible through natural faults in the rock, or more rarely, shafts. In between the layers are numerous thin tunnels made by driller earthworms. Like normal earthworms, they have no teeth, but are able to move easily through concrete and rock by secreting a strong acid through their head and drilling their way through. The holes made by the driller earthworms let in light, water and air, benefiting many creatures which live underground, including the Flytrapper and the Tokyo Giant Bat.
Quotes About Tokyo
- "Although Jakujou continued to protest vehemently, we had stopped long since stopped listening. We had to go, and our minds were filled with nothing but that dangerous land called Tokyo." - Saki's monologue about Tokyo (Part V: Chapter 07)
- "Underground Tokyo is hell. The most soldiers I lost were when we were exploring underground. But there’s no point talking about that now." - Kiroumaru (Part V: Chapter 07)