Elixir Supplier - Chapter 1000: Two Formidable Beings, whose Reputations preceded them, finally me

[WSA 2025] To confront the threat posed by monsters and demons, humanity summons a hero endowed with a mysterious system and an unrivaled capacity for evolution. He becomes the last bastion of hope for mankind. However, one of his mistakes gives rise to a calamity far worse than the Demon King.This calamity is conceived in a dungeon, abandoned as a fetus by its mother, and raised by the Demon King himself. Upon the Demon King's death, all the restraints he had placed upon the creature are shattered. Thus, the hero's nameless son begins to lay waste to everything. The greatest calamity the world has ever known is born.

Death, Depression, Poverty, Love issues – all things that a 27-year no-name writer faces.

The world is changing, natural disasters are coming, and the whole people will travel through the doomsday game!

Scary beasts, wild swamps, weird ruins, dangers are everywhere!

Human beings can only rely on shelters to survive and accept rounds of natural disasters!

- Description from novelbuddy

Police officer, would you believe me if I say this is an Iyashikei game?