Demon Realm

Biodata

Feature	Value
Name	Demon Realm
Original Name	魔界
Nature	A dark-element world inhabited primarily by the Devil Race and numerous other races and magical creatures
Political Order	Originally dominated by three great empires; later organized into a unified confederation alliance 12 883 1141
Status	Active; expanded into a multi-racial alliance during the Abyss crisis 1283
First Appearance	Chapter 1

Background / History

The Devil Race was driven into the harsh Demon Realm after losing the ancient wars against the human coalition. A barrier sealed the route between the Demon Realm and the Surface World, but its weakening every five hundred years historically triggered wars between the two worlds. 1 12

More than three hundred years before Chen Rui's arrival, Emperor White Night Lucifer led the Demon Realm's allied forces in an invasion of the human world. After killing three human powerhouses, White Night was ambushed and slain by a mysterious opponent; the leaderless Devil Race army was defeated and forced back into the Demon Realm. 1 12 368

Four hundred years before the main story, Ge Luofen Beelzebub used the divine artifact God-Devouring Mask to seize Darkmoon Territory and threaten the Fallen Angel Empire. White Night personally defeated him with the Sword of the Fallen Angel, though Ge Luofen escaped and left Darkmoon devastated for centuries. 26 156 172

By the later story, the three surviving empires formed a confederation system intended to replace rivalry with joint development. The alliance subsequently accepted humans, dragons, elves, dwarves, and beastmen as the Abyss threatened both worlds. 883 1141 1269 1283

Environment

The Demon Realm is a vast, harsh world where dark elements are exceptionally active and light elements are sparse. Its sky is obscured by thick clouds and smoke, while its two celestial bodies provide weak light and become cold, violet “moons” at night. Temperatures differ sharply between day and night. 7 626 1228

• Its terrain includes eroded pits, deep caverns, mountain ranges, swamps, underground worlds, and remote wilderness beyond the territories claimed by the three empires. 7 453
• Dangerous magical life is widespread, including Poison Dragons, carnivorous plants, magical beasts, Elementals, Evil Eyes, Gargoyles, and Abyss-related creatures. 7 331 454 768
• Blue Wave Lake is blue because of venom leaking from the Poison Dragon Pagliu, who slept beneath it for thousands of years; its waters contain no living creatures, and much of its surrounding plant life is poisonous or carnivorous. 7
• The underground world beneath Xilang Mountain contains the Earth Domain and Earth Elementals, as well as Minotaur, Medusa, cave-dweller, and wyvern territories. 156 160 172
• The Demon Realm is not fully settled; extensive regions beyond imperial borders remain undeveloped because its population has not required further expansion. 453

Artificial Moons

During the Abyss crisis, Chen Rui and his collaborators developed artificial moons using magical arrays, Ancient Rune Language, and reflected light and heat. Their appearance restored illumination, reduced panic, and became a symbol of hope for the realm's inhabitants. 1283

Peoples and Creatures

Group	Known traits
Scythe Demons / Greater Devils	The highest-ranking common demon race beneath royal families; naturally powerful warriors able to cultivate physical strength, mental power, or both. Their normal limit is High-Rank Demon, though bloodline mutants can exceed it. 5
Horned Demons	Physically strong and fearless; commonly serve as vanguard troops and may become capable blacksmiths. 5
Servant Demons	Physically frail but naturally gifted in magic; some can command magical beasts. 5
Dark Goblins	Small and weak in direct combat, but highly creative in handicrafts, construction, invention, and alchemical artificing. 5
Elementals	Self-aware beings condensed from natural elemental power. Their strength depends heavily on their environment and elemental concentration. 160 419
Evil Eyes	Floating, tentacled creatures with powerful spiritual perception and ray attacks that can carry negative effects or partially bypass defenses. 331
Dragons	Powerful independent beings, including Poison, Crystal, Black, Emerald, and Fairy Dragons. Dragons residing in the Demon Realm are called the “Fallen Dragon Race” by the Surface World, though many simply chose the realm as their home. 7 626

The Twin Moons prevent mixed-blood descendants among Demon Realm races: children of parents from different races are born as either the father's or mother's race. 5

Power Structure

Tier	Realms	Requirements and significance
Low tier	Low-tier Demon, Mid-tier Demon, High-Rank Demon	The foundation of Demon Realm cultivation. Higher realms exert rank suppression over lower ones. 12 136
Middle tier	Demon King, Great Devil King	Requires comprehension and practical command of a power's “rules.” 136 170
High tier	Demon Emperor, Devil Emperor	Defined by comprehension of domains; the divide between Great Devil King and Demon Emperor is especially vast. 239 277 293
Super-tier	Kingdomized powerhouse, demigod, pseudo-god	Begins with transforming a domain into a kingdom. Higher stages involve believers, Faith Armor, and eventually an embryonic divine spark. 586 703
Legendary terminology	Demon Venerable / Demon Sovereign	Terms used for powers beyond the ordinary Devil Emperor level; the exact highest classifications are understood differently across eras. 12 577

A realm's military power is not determined solely by individual strength. Demon Kings and Demon Emperors function as strategic weapons, but trained legions, mage formations, and coordinated warfare can threaten stronger opponents. 498 528

Government and Political Order

Three Great Empires

After the decline of the original seven royal families, three great royal lines remained in balance for tens of thousands of years. 12 181

Empire	Ruling Royal Family	Notable ruler
Fallen Angel Empire	Lucifer Royal Family	Empress Shea Lucifer 12 1126
Blood Fiend Empire	Mammon Royal Family	Emperor Lei Chan Mammon 12 213
Shadow Empire	Asmodeus Royal Family	Empress Catherine 12 1126

The surviving royal families possess inherited bloodline talents and divine artifacts with independent wills. Recognition by a divine artifact is normally reserved for an emperor or supreme ruler, though rare exceptions may become the artifact's eventual masters. 12 123

The Demon Realm's imperial noble hierarchy is:

1. Prince or Princess — restricted to royalty
2. Duke
3. Marquis
4. Count / Earl
5. Viscount
6. Baron 365 531

Confederation System

The Confederation System was proposed as an alliance between the three empires, allowing them to develop in peace rather than exhaust themselves through recurring conflict. Catherine advocated admitting declining royal families into the system to reduce unrest, while Lei Chan initially favored suppressing those who refused to submit. 880 883

By the time of the alchemy symposium, the Demon Realm had become a Unified Alliance, with Agulie—Chen Rui's public identity—as consort to the rulers of all three empires. 1126 1141

Society and Development

The Devil Race historically values martial strength above commerce and economics. Demon Realm propaganda emphasizes the humiliation of past defeats and portrays the Surface World as prosperous and desirable, reinforcing the desire to reclaim it. 239

Despite Surface World depictions of the realm as a savage wasteland, it possesses its own races, cities, commerce, craftsmanship, political institutions, and civilization. By the later story, visiting human-world Grandmasters find its prosperity comparable to that of the Surface World. 239 1141

Technology and Culture

• Ancient Rune Language — A near-lost “language of gods” used in ancient artifacts, seals, magic arrays, and advanced research. 80 368 449
• Alchemy and artificing — Dark Goblin craftsmanship, potion-making, magical equipment, and Construct War Puppets are major sources of technological development. 5 859
• Endless Warrior OL — A realm-wide magic game that functions as both entertainment and cultivation training, allowing even weak races to operate combat puppets and participate in simulated battles. 776 777
• Battle Ball and tournaments — Competitive leagues, empire-wide martial tournaments, military contests, academy exchanges, and Grand Games become major shared institutions. 914 1281
• Royal Academies — The three great Royal Academies eventually reach a scale and facility standard comparable to renowned human-world academies. 1125

Story Role / Major Arcs

Arc / Development	Role in the story
Chen Rui's rebirth	Chen Rui awakens in Arthur's body and learns that he has entered a world populated by devils and governed by unfamiliar power structures. 1
Darkmoon Territory	The impoverished Darkmoon Territory introduces the realm's political instability, hostile environment, and rivalry within the Fallen Angel Empire. 5 12
Imperial conflict	The three empires, hidden royal-family factions, and organizations such as Blood Annihilation struggle for influence across the realm. 369 760 761
Darkmoon's rise	Darkmoon develops industry, trade, military strength, magical technology, and alliances with non-Devil races, transforming from a barren territory into a major power. 366 379 859
Confederation formation	The three empires move toward a political union under the Confederation System, ending their former balance of constant hostility. 880 883
Early reopening of the Gate	The barrier route between the Surface World and the Demon Realm reopens ahead of schedule, reviving the threat of war between the two worlds. 1224 1228
Human migration	As the Abyss devastates the Surface World, human refugees enter the Demon Realm through teleportation gates and receive food, work, and equal legal status in places such as Soto Town. 1269
Abyss war and alliance	The Abyss' descent forces devils, humans, elves, dragons, dwarves, and beastmen into a shared confederation for survival. 1237 1272 1283