Underworld

The Underworld (アンダーワールド) is the mysterious virtual world in which the Alicization Arc takes place.

Axiom Church
The Axiom Church was founded around 30HWC (100 years after the creation of Underworld). At the time, the founder and head of the church was a girl named Quinella. Her Sacred Task was one not seen before in Underworld: “Sacred Arts Research.” She soon became very proficient at the Sacred Arts and had discovered many new rituals that people could use in every day life. At the age of thirteen, Quinella decided she didn't want to rule over the people as a lord or baron - she wanted to have absolute control, she wanted to become God. To do this, Quinella started doing “miracles” in front of people, predicting storms and healing sick and injured people in the name of "god". She told the people that a shrine to worship god needed to be built in order to perform even greater miracles, hence a large marble spire was erected in the center of town. This was the beginning of the Axiom Church. Years later when Quinella felt her life was coming to an end, she desperately tried to find a form of Sacred Arts that could manipulate her Life. Even at the verge of death, she still tried chanting various combinations of verses in the hopes of finding something that could help her. One fateful night, when she was just on the brink of death, Quinella discovered the Sacred Art: “Inspect Entire Command list,” and at the bottom of this list was the command that Quinella had been searching for, the one that would let her truly become God.

Human World
The Human World is where the Humans live in the Underworld, it's a perfect circle with a diameter that measures around 1500 kilometers.

The Human World is divided into four empires: Norlangarth North Empire, Eastabarieth Empire, Wesdarath Empire, and Southacroith Empire. The capital of all four empires is Centoria, from where it is ruled by the Axiom Church and the four empires.

Norlangarth North Empire


Norlangarth North Empire (ノーランガルス北帝国) is the northern empire of the Human World. Rulid Village is the northernmost village in this empire. Zakkaria is a town to the south of Rulid Village. Deusolbert Synthesis Seven used to be the Integrity Knight overseeing the Norlangarth Empire.

Eastabarieth Empire
Eastabarieth Empire (イスタバリエス帝国) is the eastern empire of the Human World.

Wesdarath Empire
Wesdarath Empire (ウェスダラス帝国) is the western empire of the Human World.

Southacroith Empire
Southacroith Empire (サザークロイス帝国) is the southern empire of the Human World.

Edge of Human World
Edge of Human World (人界世界の果て) is the border between the Human World and the Dark Territory.

Mountain range at the Edge
The Mountain range at the Edge (果ての山脈) is the mountain range that surrounds the Human World.

Dark Territory
Dark Territory (ダークテリトリー) is the country of demons. It houses goblins, orcs, etc. It is situated at the other end of the Mountain Range at the Edge.

Law System
The Human World is ruled under the Axiom Church who established the Taboo Index as a supreme law above all, and its objective is to ensue the pacifical live of people and the self-reliance of the live within the human world. The fundamental statement of the Taboo Index is that one cannot lower the «Life» of anyone without a reason.

Below the Taboo Index are the laws established in each one of the four empires, and below it are the rules that apply to certain places such as the Sword Mastery Academy.

Although this system rules the entire world, and has a good purpose, it is full of flaws that people had found to commit evil acts without breaking the law.

It was later revealed that it was actually created by Quinella when she created the Axiom Church to ensure that nobody would be able to find the secret to "level up" as she was doing, allowing her to gain control over the Underworld human residents.

Sacred Tasks
A Sacred Task is a lifelong occupation assigned to each individual in the Human World. Most people are assigned their Sacred Task at the age of 10 during Spring, with very few exceptions, for example, the children at the Axiom Church who can receive their Sacred Task even at the age of 5 while a child who is very gifted in Sacred Arts may have their Sacred Task postponed to allow them to train their talent. A Sacred Task is usually assigned by a village chief, the ruler of a town, a high-ranking noble with their own territory or a minister from the Axiom Church - the people in charge of the area where the child was born.

The Sacred Task assigned to a person the first time cannot be chosen by the people themselves and, once a Task is assigned, it is impossible for even those who assign the Tasks to revoke them. However, certain tasks can be changed if the person is promoted, for example, a village guard may become a sentry in a local town, a student at the Sword Mastery Academy, and even an Integrity Knight in the end, if they meet certain requirements. Additionally, if a Task is completed (this only applies to Tasks that have an end), the person may choose their next Sacred Task themselves.

In practice, the eldest son of each household is usually given the same Sacred Task as their father: a tool shop's owner's son would continue working in the shop, a guard's eldest son would become a guard and a village chief's eldest son would succeed them as the next village chief. For farmer households, this standard usually applies to their daughter, second and third sons as well, though there are exceptions. People who are assigned Sacred Tasks that do not provide a source of income are given a wage from the village's or city's vault.

Once a Sacred Task is assigned, a person is only allowed to rest from their job on rest days and may not travel in a way that would prevent them from working on their Sacred Task, meaning that mostly only traders could travel long distances, if it is part of their Sacred Task, while an average villager would only be able to travel if it was possible to return to their Sacred Task by the next workday.

Certain Sacred Tasks also have certain benefits, for example, a person who is assigned to be a guard is assigned a real sword to use and may spend time practising their sword skills. Although it is possible for someone to help others with their Sacred Task, it's against the Taboo Index to "have many Sacred Tasks".

Language
There are 2 known languages within Underworld: the Common Tongue and the Sacred Tongue.

Common Tongue
The Common Tongue is the main language used for writing and speaking in Underworld. It is the equivalent of the Japanese language in the real world, though the language is supplemented with a few words borrowed from other foreign languages. However, the major difference from its counterpart in the real world is that only about 1000 kanji, about the equivalent of 30% of JIS Level 1, are used in Underworld, while other words and most names are written in kana. Although the same language is used throughout the Human World, several accents do exist.

Sacred Tongue
The Sacred Tongue is the name given to the English language, though supplemented with a few words from other languages, by the residents of Underworld. This language is regarded as a sacred language used to ask the gods for miracles and is not considered as having any special meaning by the average resident, except for those who study the language for Sacred Arts. The language is mostly used in chanting the verses for Sacred Arts and written in system windows, like the Stacia Window, though a few names are also derived from this language, for example, the Gigas Cedar or the Dark Territory. The language can either be written in the English alphabet or in katakana for easier reading.

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