Main World

Biodata

Feature	Information
Name	Main World (主世界)
Alias(es)	Gaia Main World; Human Main World
Type	A vast plane-world and the center of human Divine Domain Civilization
Ruling Will	Gaia Will
Status	Active; continually expanding through acquired World Origin 100
First Appearance	12

Physical Structure

The Main World began as Earth, but continual inflows of plundered World Origin caused it to expand until the first human Great Divine Power shattered and remade it into a heaven-round, earth-flat plane. Its boundaries continue to grow, and its total extent is unknown even to Lin Xiao's family elders 100.

• The original Moon and the other planets of the Solar System were absorbed into the expanding Main World; only the expanding Sun remains outside the Main World Plane 189.
• Its population is measured in trillions, yet human settlement occupies less than one percent of the continent. Most of the land remains undeveloped wilderness inhabited by wild and ferocious beasts 100 297.
• The Main World's surrounding void and former Solar System have also expanded enormously through centuries of acquisition from other Crystal Wall Universes 295.

Divine Domain Civilization

The Main World's Deity Civilization calls its gods New Gods, distinguishing them from the traditional Ancient Deities of Crystal Wall Systems 12.

• A New God's Divine Domain combines the functions of a material plane and a Divine Kingdom.
• Living beings inhabit the material-plane interface; after death, they enter the Divine Kingdom interface.
• Divine Domains also incorporate reincarnation, a function not shared by conventional Divine Kingdoms 12.

Astral Realm

The Main World's Astral Realm is the destination of fallen Divine Domain players. When one dies, their Divine Domain merges into and strengthens the Main World, while a projection of that Divine Domain becomes their tomb within the Astral Realm 295.

• The deceased Divine Soul returns to the star formed by its Divine Domain projection.
• The stars visible from the Main World are projections of God Tombs rather than ordinary celestial bodies.
• A stronger god in life leaves behind a brighter stellar projection 295.
• Divine Domain Sons may abandon their accumulated strength and reincarnate from a fragment of their True Spirit; this bond with the Main World is described as mutually beneficial rather than compulsory servitude 644.

Gaia Will and Expansion

The Gaia Will is the foundation of human civilization. Divine Domain players are expected to establish Parishes and secure alien planes so that Gaia's power can extend into them and receive feedback 303.

• The Main World grows by plundering Resources, World Origin, and—most importantly—Laws from outer Crystal Wall Systems 99.
• Low- and mid-level Divine Domain Sons primarily acquire Resources and Faith Power, while Greater Divine Powers must acquire Laws from other worlds to strengthen the Main World and meet the requirements for advancement 659.
• Main World Laws cannot themselves be used by Divine Domain Sons to advance to Greater Divine Power; the system's core principle is the acquisition of Laws from other realms 659.
• In exchange, the Main World provides protection, an Astral Realm afterlife, and the framework through which Divine Domain Sons develop their Divine Domains 644.

History

Earth United Nations era

Humanity first discovered the Divine Domain game while Earth was still a planet. The nations of Earth united as the Earth United Nations and formed the Outer Realm Expeditionary Force to conquer alien planes and return their Resources and rules to the Main World 177.

Early expansion was highly successful, with dozens of planes conquered in succession. This influx of external origin initiated the transformation of Earth into the present Main World 100 177.

Tirdega invasion and the vanguard

Two centuries after humanity began exploring Outer Realm Crystal Walls, the Tirdega Crystal Wall System invaded. Humanity had not yet produced a Greater Divine Power, and the invading gods penetrated deep into Subspace, approaching the Main World itself 163.

In response, the Earth United Nations launched two major initiatives:

• Hope Plan — dispatched elite expeditionary vanguards into the Chaotic Void Sea to seek allies, draw hostile powers into conflict, and preserve humanity's future.
• Spark Plan — sent gods, civilians, technology, and resources to unknown Crystal Walls as a safeguard against the war reaching the Main World 177.

Although the vanguards found no allies, one member achieved a sudden rise in a foreign Crystal Wall System and returned within less than a century of Main World time as a Great Divine Power with a Godhead Level above 20. This pioneer became the first Old Headmaster of Radiance 163.

Division into four factions

The Earth United Nations later dissolved more than 300,000 years before the events involving Major General Klee. Differences in race and ideology produced four major successor blocs 163.

Faction	Notes
Huaxia District	Includes major military forces such as the Fifth War Zone.
Ivy League University Alliance	A major academy-centered bloc.
Giant Enterprise Alliance	A bloc formed around powerful corporate interests.
Council of Nobles	A bloc composed of aristocratic powers.

The four factions have no unified governing body; each is composed of powerful constituent forces with substantial autonomy 426.

Subspace and Outer Realm Defense

Subspace separates the Main World from the Chaotic Void Sea while also serving as its protective barrier. Divine Domains float throughout this boundless region 99.

• Human civilization maintains numerous Super War Fortresses in Subspace as defensive positions and staging grounds for Outer Realm conquest 99.
• Control of these fortresses gives military regions immense influence because communication between the Main World and the Outer Realm must pass through them 426.
• The Fifth War Zone is centered on Yan Huang No. 5 Super War Fortress and unites numerous subordinate forces under its military and political influence 426.
• Of the millions of Crystal Wall Universes discovered over roughly 300,000 years of exploration, fewer than 10,000 are known to have stable invasion bases 303.

Military technology

Main World military equipment combines modern technology, magic-guided technology, and techniques acquired from other Crystal Wall Systems 145.

• Void Warships, War Fortresses, and Steel Golem legions use crystalline protective films over high-hardness alloy structures.
• These defenses provide strong resistance to elemental attacks and spells, granting major advantages against many alien native forces 145.
• Void Ships are the standard means of long-distance travel, though powerful factions may use magical ships, mobile Mage Towers, or Floating Cities 420.

Technology Restrictions

The major Main World powers restrict the uncontrolled spread of high-end technology 420.

• Mage Tower construction is generally taught at university level.
• Floating City technology is restricted to Higher Academies and is not available to all students.
• Independently developed or recovered foreign technology may be used, but cannot be freely disseminated.
• Holders of sufficient military rank may receive exemptions or limited authority to pass sensitive knowledge to subordinates and relatives 420.

Conflict with the Nightmare Main World

The Main World has fought a vast war against the Nightmare World since their respective exploration forces encountered one another in a Crystal Wall Universe. Once the Gaia Will and Nightmare Will recognized each other through Divine Domain players and Nightmare Lords, both worlds committed their forces to a war spanning no fewer than a thousand Crystal Wall Universes 305.

Later revelations identify the Human Main World and Nightmare Main World as the birthplaces of the Human Master and Nightmare Master respectively—two early Star Soul Titans. Their struggle for Outer Realm territory is therefore tied directly to the strength and survival of their home worlds 546.

• A stable Nightmare foothold within the Human Main World would endanger the Human Master and count as a strategic failure if maintained long enough 546.
• The Gaia Will values worlds containing Nightmare-derived rules, since absorbing and analyzing them would grant a major advantage in future conflict with the Nightmare Will 311.
• The Main World remains a critical home-ground advantage: its strongest human powerhouses can mobilize the strength of the entire civilization through Gaia when defending it 767.