[The information provided will be gradually introduced throughout the story. This chapter can serve as a means of knowledge. As such, it may contain minor spoilers.]

◇Shattered Realm

Shattered Realm is the vast continent where, in ancient times, humans thrived. Since the Nightmares returned, the continent has been shattered and corrupted. Now, humans can only survive in the Solmara Empire, the last stronghold able to resist the incursions of these dark beings.

A place of constant struggle, where darkness not only fills the sky but also dwells in the depths of the earth.

◇The Nightmares

Known as demons in many cultures, the Nightmares are supernatural entities that feed on terror. Their power increases as they feed on the despair of their victims. As their power grows, they become more rational and dangerous.

It is said that, in the beginning, they were mere shadows without consciousness. Today, they are an empire of terror threatening to consume everything.

◇The Enlightened

A small group of humans, known as the Enlightened, have developed unique abilities called Singularities, which allow them to fight the Nightmares. These individuals are extremely valuable and possess extraordinary abilities that make them humanity's last line of defense against evil.

Though few, their power is the only hope in a world that fades into shadows.

◇Singularities

Singularities are special powers that the Enlightened acquire through a mystical connection with the soul. These abilities are unique to each individual and originate from their own genius. When a human reaches Enlightenment, they can unlock a singularity that sets them apart from others.

There are rumors about singularities that defy the laws of nature, such as the ability to manipulate time or even connect with the consciousness of the Nightmares.

◇The Cracks

The Cracks are dimensional fissures opened by the Divine Beasts, enormous and powerful entities that seek to destroy what remains of humanity. These cracks act as portals to a chaotic world, a battlefield where the Enlightened fight to prevent the invasion.

Only the bravest venture into the cracks, facing indescribable horrors in search of a greater purpose.

◇Domains

Each crack encompasses a domain, regions within these portals controlled by a Divine Beast. Each domain has unique characteristics and deadly dangers depending on the creature that controls it.

The Domains are not only battlefields but also places where the Enlightened search for artifacts or knowledge to strengthen themselves.

—Common Terms:

◇Cracks

Cracks are the exits of the fissures once they have been closed or conquered by the Enlightened. For many, they represent the return to a world still fighting for survival.

However, the cost of opening a crack is high. Only the strongest can seal a crack and escape from it.

◇Fragments

Within the Domains, the Enlightened can find Fragments, powerful artifacts that grant new abilities, weapons, or even information about future events that could change the course of the war.

Some Fragments are said to contain the memories of the Divine Beasts, but few have been able to unlock their true power.

◇Spirit Seed

The Spirit Seed is the core of the Nightmares, a vital essence that the Enlightened use to strengthen their internal energy. Each Spirit Seed contains a small part of the Nightmare it comes from, allowing its bearer to access a power that would otherwise be unreachable.

An Enlightened's power can multiply by consuming these cores, but at a high cost. If a soul is weak, the Spirit Seed can consume it entirely.

◇Ecliptics

The highest of all the ranks of the Enlightened. Ecliptics are beings who have reached such a high level of power that they transcend the normal rules of the world. They are known for their ability to defy the laws of nature. Only a few have attained this level, and their existence remains shrouded in mystery.