The 'Demon Realm' is a world distinct from the human realm.

Time flows faster here than in the human world.

The sky is perpetually tinged with purple.

Demons prey on humans and other beings for food. Magical beasts roam the mountains.

Despite this, the cityscapes are not much different from the human world. In the city centers, the Demon King's castle stands tall. In rural areas, discrimination against certain demon races persists, sometimes leading to torture... There are no cars; all paths are cobblestone walkways.

Demons utilize magic and consume humans. Vampires derive nourishment from the blood of humans, demons, and beasts alike. Some magical beasts even attack demons.

Human food is sold as livestock feed. There are shops similar to those in the human world. There are also shops that utilize magic.

The currency has the same value as Japanese Yen. The currency is called Mor. Only coins exist; there is no paper money.

Only high-ranking demons with common sense and the ability to use teleportation magic can travel between the human and demon realms. Humans born in the human realm cannot enter the demon realm.