The Undead King of the Palace of Darkness (WN) - Chapter 19.1: Darkness and Light Part 1

The world experienced a cataclysmic change, and countless spatial gateways appeared out of thin air.

Leric was a top herbalist and a qualified doctor, but he was already in his twilight years. He had spent his entire life researching herbs and the human body. And because of this reason, he didn’t experience the joys of life. However, a piece of information written in an old book changed his life.

It was a chance at rebirth!

With his knowledge as an herbalist and as a doctor, join Leric as he begins a new life in Falkur, a world ruled by powerhouses called Espers!

Yang Dai, who was reborn in the third year of high school, was forced to enter the [Deep Domain] before he could be happy.

This is a world where gods and gods reappear and demons eat and kill mortals!

Myths are revived, animals and plants have been transformed into demons, foreign ghosts have invaded, and the status of human beings as the ruler of the earth is at stake. At this time, the mysterious [Deep Domain] came to the earth in the form of virtual games, bringing hope to mankind.

Yang Dai entered the deep domain to gain the ability to control the soul. Based on the concept of wretched development, he wanted to be a soul summoner, and he planned to form an army of souls first, and then explore the deep domain.

Unparalleled talent, the peerless genius of the dynasty!

The unparalleled demon king who is wreaking havoc on the world!

Covering the sky with one hand, the Patriarch of the Demon Dao who presses the right way!

When Yang Dai’s soul army appeared more and more terrifying names that shocked all beings in the two worlds, he also won the honorary title of Megatron.

Soul Master!

- Description from novelbuddy

It was in the year 2800 of the Midgard calendar. Back then, there was a Overlord who once reigned supreme and had reached the very brink of subduing the world.