(This chapter's content involves the protagonist's world and is entirely referenced from post-apocalyptic alternate reality settings like "Radiation," emphasizing again as usual: the content in the text has nothing to do with reality, and is not related to reality at all. This can be seen from the fact that the author was criticized for lack of common sense from the very first chapter, as it is indeed pure fantasy, not even understanding basic physics, so please do not associate it with anything else.)
A grand human conflict took place, its scale far surpassing that of the Third World War that people had once imagined.
After all, the worst thing people had imagined was a Fourth World War fought with stones, yet the war that occurred in Lille's memory had nearly flattened all the space above ground.
People could still find stones, but these stones were basically imbued with lethal amounts of radiation.
