In the first year of martial arts, cracks appeared in the sky and the earth, and terrifying beasts invaded the world.

One hundred years after the rise of martial arts, human warriors competed with strange beasts.

After 200 years of martial arts, the human race has declined, and their living space has been constantly snatched away by strange beasts.

After three hundred years of martial arts, Lu Sheng traveled through time and space, and he could log in to the future ten thousand years later in his dream - "The basic body refining technique ten thousand years later has been revised more than ten thousand times, and the effect is now...

Li Yue traveled to the devil's castle, and he was not a cool vampire or a mysterious magician, but a bald brain spirit?

Fortunately, the brain spirit has the ability to perceive thoughts, move objects through the air, and shock souls... at least it can be considered a magical creature.

Li Yue, who has unlocked the "Demon's Encyclopedia", will start as a brain spirit, collect strange monsters, transform the inner demons, summon monsters from other worlds... wander in chaos and darkness, and climb to the top of the Demon King's City step by step.