Martial King's Retired Life - Chapter 7Book 15:

The world had been in chaos for over three hundred years.In the Central Plains, singing and dancing never ceased, foreign tribes sharpened their weapons and fed their horses, Sword Immortals roamed the Martial World, and famed generals quelled unrest in all directions.Five years before the great upheaval, the young Pharmacist Li Guanyi committed murder on a rainy night.At last, he opened his eyes and saw this chaotic human world.Underneath the hooves of horses lay piles of bleached bones – famed generals, beauties, the Martial World, Divine Weapons, commoners, Dharma Forms.Since ancient times, only white bones and yellow sand remained on the fields!Confucian Scholars, crushed beneath iron hooves; Buddhas, swept away by long spears!“I, Daoist Li Guanyi, invite this world to its death!”

He was not a human since no human is aware of himself even before his birth.

He has no blood and no heart, but emotions?

He does have feelings, but can he express them?

Why was he called a Devil’s Spawn at his birth?

Why did they cut away his arms and a leg?

Why did no one ever visit him for years?

And why does this emptiness... feels so... just so familiar?

Why does the Void feel so... full?

Who is he? Or rather... What is he?

I became a professor in a game by accident. To make matters worse, I even messed up the difficulty settings. Now, I’m stuck playing on Hell Mode. A world on the brink of war with the Demon King. An Assassin Department where mu*der is legal… as long as you aren’t caught. I thought I’d have to claw my way through just to survive in this wretched place, and that was the case at first. But nowadays… “No matter how hard I try, I can’t be like you, Professor… How do you do it?” “Please… become our god.” “What do you know? What is it you know? Why do you make me want to live…?” One by one, everyone at the academy began to obsess over me.

The consciousness of a Great Magus suddenly returned to his original body on earth, just before he transmigrated into the magic world.

Nothing has changed, it's still the same earth.

However, when he looked at earth once more as a former great magus, he discovered earth was not as simple as he knew it to be.

Hidden magus, legendary races such as vampires and werewolves, they do exist, ruling the world through the shadows.

Faced with a former great magus, who possessed as many spells as libraries, would the earth that had been ruled by a few people be able to remain calm?