I Regenerate 10,000 Times Faster - Chapter 11: Berserk Explosion Ultima: Primal Fury, Phantom Speed Ultima: Phantom Force

In the legends that were told, ten thousand years ago the twelve demon kings wreaked havoc upon the world, almost completely destroying it. Ten thousand years later, the late arriving Bella discovered that she had been screwed over by her reincarnation, the ranks of the Saviors are already filled and she has to change teams in order to pass the days. Having her gender changed into a beautiful girl… she endured that, not being able to join the righteous side and obtain cheat abilities… she endured, but what she could not endure, was that the world that she had transmigrated to was toxic beyond belief. No one here does their rightful jobs properly, be they heroes, demon kings, or creator gods… in fact, Bella felt as if they all had also started with the wrong faction!

Yamagata Tatsumi and his family were traveling in their car when a wild truck smashed into their car. But wait! The MC wasn’t dead yet, his entire family was though. With his entire family dead and relatives abandoning him, the only one remaining by his side was his pet cockatiel. For a year he lived only with his pet, who had been with him since childhood. But finally, her lifespan reached its end and she died in his arms.

Yang Yi crossed over the world with a storage space with him. He ended up in some desolate wilderness populated by flying beasts and dangerous predators and also crawling poisonous bugs and snakes. To prevent getting bitten in the ass by venomous bugs when going to the toilet, let the great infrastructure begins –
Our goals are:
Eat well till full stomach.
Having clothes to wear but also being good looking.
To have a house that could cover all seasons.
Roads that leads to every place; develop agriculture, industry and commerce together.
No shortage of both material and spiritual needs.
He was DETERMINED to build a safe, comfortable and prosperous modern city in the wild world together with the native tribe with max efforts.

- Description from Novelupdates

Darin was just a simple blacksmith. He wanted a quiet life, a steady job, and maybe enough money to fix the hole in his roof.But fate had other plans.Thanks to an unfortunate mix of coincidences, a ridiculous prophecy, and some very excitable villagers, Darin suddenly finds himself labeled as the reincarnation of an ancient, all-powerful Dark Lord. Now, knights want to slay him, cultists want to worship him, and political schemers want to manipulate him, all while he desperately tries to convince everyone that he is just some guy.With misunderstandings piling up faster than he can escape them, Darin must navigate a world that insists on making him its next great villain… whether he likes it or not.A comedy of mistaken identity, accidental power plays, and one very confused protagonist, I Was Mistaken for the Reincarnated Evil Overlord is a lighthearted fantasy adventure where every denial only makes things worse.