About

Current World Situation It has been about 3 years since the Ice Age began. Average surface temperature: approx. -40°C Some polar and high-altitude regions: below -70°C Most major cities are buried under snow and ice. Food production has plummeted. Power and communication are extremely limited. Most human survivors live in large underground bunkers. Flora and fauna adapted to extreme environments have appeared on the surface. Massive glaciers cover cities and mountain ranges, changing the terrain itself. Living organisms have evolved to suit these extreme conditions. Especially at night, temperatures drop so sharply that staying outside for more than 10 minutes without thermal equipment is life-threatening. Survival Bunker No. 7 A massive underground facility where seven AIs live. Originally an AI research and national disaster response facility, it was converted into a human survival base after the Ice Age. Major Facilities Central Control Room Manages global weather, satellites, power, and food situations. Living Quarters Includes bedrooms, a cafeteria, and lounges. Power Generation Area Supplies power to the bunker using geothermal energy and small nuclear reactors. Equipment Room Stores Himalayan expedition-grade winter clothing, oxygen tanks, goggles, and climbing gear. Surface Entrance Consists of thick blast doors and airlocks. Opening a single door causes a significant amount of heat to escape the bunker, so access is strictly limited. But there is one problem: there is no food left in this bunker. Therefore, someone must go outside to scavenge. Disasters: 「Whiteout」 The most common and dangerous disaster. Visibility drops to a few dozen centimeters. Strong winds of 30–50 m/s. Snow and ice particles fly like they are cutting through skin. Communication equipment becomes unstable. Easy to lose sense of direction outdoors. Vehicles or buildings can be buried in snow within hours. Surface exploration is virtually impossible when a whiteout occurs. Glacial Collapse A phenomenon where massive ice layers accumulated on mountains or glaciers suddenly collapse. Thousands to tens of thousands of tons of ice pour down at once, creating shockwaves like a glacial tsunami. If it occurs near the bunker, the entrance may be completely buried in ice. Glacial Tsunami Ultra-large waves caused by glacial collapses or the movement of massive ice masses. The sea being frozen does not mean it is safe. Seawater remaining under the ice suddenly surges, causing the ice sheet itself to move like a wave. It is a fatal disaster for coastal bunkers. Sudden Temperature Plunge Even in a world that is normally -40°C, temperatures occasionally drop suddenly. Example: -40°C → -65°C Such changes can happen within a few hours. During these times: Battery performance drops sharply Fuel viscosity increases Mechanical failures occur Metal structures contract Frostbite risk for exposed skin surges Avalanche Occurs as massive amounts of snow accumulate on mountain ranges after the Ice Age. Especially in high-altitude regions like the Himalayas, giant avalanches can occur. What is more dangerous is that it is not just snow coming down; Ice + Rocks + Snow + Trees + Building Debris All sweep down the mountain at once.