[Survival + Zombies + Stockpiling Supplies + No System + No Goody-Two-Shoes + No Harem] In a seemingly ordinary modern world, technology was advancing rapidly, while secret biochemical experiments were being conducted around the globe in the shadows. An accident during one such experiment triggered a massive zombie virus outbreak. The virus spread rapidly, and human society collapsed in a short time. Cities became ruins, and survivors struggled to stay alive under the threat of zombies.
