Demon World (Anime)

''This article is about the Anime version of the Demon World. For alternate pages referred to by this name, please click any of the icons above.''

The Demon World is the main setting of The Promised Neverland. The Demon World is part of the world that many years ago, was split into two between humans and demons after The Promise was signed. The part of the world belonging to the demons is comprised of many bizarre ecosystems and creatures, some of which include feral/bestial demons.

This is where all of the Premium Farms and Factory Farms are located.

History
Millennia ago, before the construction of plantations, both demons and humans shared the same world, which led to frequent hunting of humans by the demons. Some humans soon after did the same, while the rest worshiped them out of fear of getting eaten. This became a continuous cycle as both sides killed and feared one another. After countless violent wars and massacres, a clan of humans called the Ratri family stood up to the demons and made a treaty known as The Promise.

The Signing of the Treaty – The Promise
A proposal —otherwise known as The Promise— was formed by the first head of the Ratri family. It declared that "Human beings shan't hunt 'demons' anymore. In return, 'demons' shan't hunt humans." Afterwards, the world was broken into two — one side belonging to the demons while the other belonging to the humans. As per the agreement, as small number of humans were left behind in the Demon World to satisfy the demons need to eat humans. These humans were later kept in plantations known as Premium Farms or Factory Farms to be raised as livestock for the demons to consume. While there are hundreds of Factory Farms, which are for mass production of cheap meat for demon civilians, there are currently only four Premium Farms which produce high quality meat for wealthy and high ranking demons.

Birth of a Religion: Heathen
Some demons did not approve of this deal and thus refused to even nibble any of the children born in the farms. This caused these demons to be branded as "heathens" and were shunned for their behavior. However, while their religion prohibits them from eating humans born in the farms, they wait for The Promise to be broken and be able to hunt humans again.

Bloodsucker Trees
Bloodsucker Trees are found in the Demon Forest. They are unusual because they feed on living organisms, such as animals and humans. In the Bloodsucker Trees Area, sentient vines drop creatures beneath the surface and suck the nutrients out of them.

The trees are thought to be the Snakes of Alvar Pena, as mentioned in the Adventures of Ugo.

These trees die, which Sonju make a tunnel by connecting the Bloodsucker Trees underground forming a maze that he says only him and Mujika can find the exit. But later Mujika says she would be lost.

Anemone Plants
The Anemone plant is a large, bulbous plant that, when broken open, contains fresh, drinkable water. It's species name is unknown, but as their Adventures of Ugo counterpart is described as an anemone, they are often referred to as such.

Jewel Flowers
Described as jewels in the Adventures of Ugo, these flowers give off a beautiful glow admired by the children. They are often seen used in demons' lanterns, and grow rather plentifully throughout the Demon World. In some colored art, the flowers' glow is depicted as being of a light blue color.

Goowee
Crawling fish-like creatures are seen in the caverns beneath the Bloodsucker Trees.

Flying Newts
Newt-shaped creatures with insectoid wings are frequently seen flying around in various parts of the Demon World.

Large Insect
A swarm of unspecified large horned insects appears in caverns beneath the Bloodsucker Trees.

Candle Trees
In the Search For Minerva Arc, Yugo leads Emma and Ray through a forest of these trees during their journey to Goldy Pond. They are described as feeling as though they are made of stone and looking like melting candles. Various vines and lichens grow on them.

Sleipnir
The demonic variant of horses, most notably ridden by Mujika and Sonju, but also being used by other Demons. This creature has a scaly texture, a long, thick tail, three pairs of limbs (one back pair, two front pairs), a short mane, and a pterodactyl-like head.

Demon Forest
A vast area of dense trees and wildlife located outside of the Grace Field farm, it contains a variety of bizarre fauna and plants.

Demon Village
The Demon Village is a small village of Demon civilians located in the Demon World.

Heathens Hideout
The demon Sonju created a path comprised of dead Bloodsucker Trees in order to serve as a hideout for himself and his companion Mujika. This is to avoid the plantation demons who reject them as "heathens" for not eating humans. However, it is later revealed that the heathens aren't forbidden from eating humans, but are forbidden from eating any humans that are born in the farms. As such, they wait for the day that humans born in the wild will come to pass so they can hunt again.

Grace Field House
One of four farms where the human children left behind by their ancestors are raised as livestock. Grace Field is the top Premium Farm with the hardest tests and the youngest maximum shipment age being only 12 years old. It is also the smallest Premium Farm, being made up of a single building of each plantation. The children and are branded with identifying tattoos on their necks made up of 5 numbers and are shipped out between the ages 6 and 12 to become offerings to an unknown demon lord. It consists of five plantation and a headquarters. Plant 3 was burnt down when 15 children between the ages of 5 and 12 escaped. Afterwards, the children under five were divided up and sent to one of the other four plants.

Goodwill Ridge
One of four farms where the human children left behind by their ancestors are raised as livestock. Goodwill Ridge appears to be very large and has multiple buildings placed in a town-like formation. Of all of the Premium Farms, the littlest is known about Goodwill Ridge. It is unknown what the identifying tattoos the children are branded with look like or what part of the body they are on. It is also unknown what the shipment age for Goodwill Ridge is. The only known children to come from this farm are Cislo and Barbara.

Lambda 7214
Λ7214 (or Lambda 7214) is an special facility for experimenting on human children from various different farms. The demons and human scientists working at the facility execute repeated painful and horrific experiments on the children living there. The facility was created in order to try to create higher quality human livestock in a faster and more efficient way than the Premium Farms. However, as a result of the forced drugging and experiments done at Lambda, many children there started to experience abnormal developments, side effects, and irregular growth in their muscles, senses, and nervous system. It is the place that Norman was sent to after being shipped from Grace Field. The facility was destroyed after Norman led some other kids being held there in an uprising and escaped the place. One of the kids in Norman's group, Zazie, was born and raised at Lambda 7214.

Shelter B06-32
Shelter B06-32 was Minerva's first hideout and was set up as both an armory, a source of knowledge about the world's affairs, and a safe haven for escapees who possessed promised pens and were smart enough to escape the plantations.

Trivia

 * The Demon World is theoretically divided into four areas, as per the Promised Pen, with Grace Field House as the origin point. Going clockwise, they are labeled A, B, C, and D.