The Umbral Expanse

Biodata

Feature	Value
Name	The Umbral Expanse
Alias(es)	幽暗之地; Umbral Wizard Academy
Occupation/Role	Wizard Force, academy, territorial authority, and headquarters network
Status	Ruined during the crisis caused by Andersen; later regarded as part of the past 380 394
First Appearance	Chapter 1

Organization

Leadership and supreme council

The Umbral Supreme Council is the force's highest deliberative body. Its members can exchange information directly through Wizard Marks rather than spoken discussion, allowing deployments to be arranged rapidly. During the Evil God Incident, twelve projected figures convened in the council chamber, with eleven Formal Wizards reaching a common decision. 89

• Wizard Umbraly Light — A Rank 2 Wizard who handled the Expanse's affairs while Umbral remained in secluded experimentation. She was initially its Decision Maker. 89
• Umbral Wizard — Umbraly Light's brother and a Rank 2 Star Wizard. He later received the Decision Maker position and authority over the Umbral Lineage. 350 359
• Umbral Darkness — The name under which Umbral Wizard was publicly revealed as the Expanse's second Star Wizard following the Mountain Sea conflict. 355
• Formal Wizards — The force's core foundation; their losses in war were treated as a serious strategic cost even when victory was achieved. 355

Schools, lineages, and enforcement

The Umbral Expanse contains multiple Supernatural Schools and lineages, including the Bone, Dream, Divine Blood, and Umbral lineages. The Divine Blood School is particularly associated with Mechanical Wizards and was responsible for much of the Expanse's construction work. 97

• Umbral Hand — An elite Enforcement Wizard department joined by Wang Ya after he became a Third-level Wizard Apprentice. 172
• Rule Supervision Department — Investigates and punishes internal violations; its investigations can summon wizards from across the Expanse back to headquarters. 164
• Gloomy Prison — A Supervision Department prison for rule-breaking wizards and captured Wilderness Wizards, protected by high-grade arrays, Heavy Water, and suppression chains. 237

Authority, Resources, and Advancement

Umbral Points and authority

Umbral Points are earned primarily through missions, especially those issued by headquarters. They can be exchanged for resources unique to the Umbral Expanse and for access to the second floor of the Upper Academy library, where Wizard Legacies are available. 59

Authority / Qualification	Requirements or source	Privileges
Level Three Authority	Held by Wang Ya after winning the Secret Realm Competition as an Umbral Child	Greater conveniences and access at headquarters 125
Umbral Child	An honorary qualification under the Umbral Nurturing Plan	Receives substantial support and is considered a formal position 72 125
Umbral Walker	Advancement from Umbral Child is one route toward becoming an official Wizard	Required alternative to reaching the strength of a Limit Wizard Apprentice 199
Umbral Star	Awarded under the Umbral Nurturing Plan	May participate in the Umbral Supreme Council, access advanced inheritance knowledge, and obtain resources and methods connected to Rank 2 advancement 287

The Umbral Nurturing Plan was designed to cultivate exceptional wizards through the titles of Umbral Child, Umbral Walker, and Umbral Star. The top three competitors in the Secret Realm Competition could also gain an opportunity to enter a Supernatural School. 72

Academy and library

The Umbral Wizard Academy teaches twenty-one basic supernatural disciplines. 59

The Umbral Library's second floor holds records of Wizard history, events, unusual phenomena of the Endless Sea, and information on rare Supernatural Lifeforms. 94

Inheritance assets

• Inheritance Land — Guarded by hidden Formal Wizards and used to preserve high-level Wizard knowledge. 141
• Nether Secret Realm — Contains the inheritance of the Nether Wizard and is accessed through a Nether Fire gateway. 327 328
• Star Moon Archway — A foundational long-distance transmission system capable of reaching locations throughout the Expanse; travel costs decrease near established nodes. 268
• Umbral Tower — The central and tallest structure of the Expanse, housing the Supreme Council chamber and serving as the focal point of its leadership. 89

Territory and Infrastructure

The Umbral Expanse's headquarters combines modern and classical architecture. Its gray, metallic walls are engraved with historic patterns, while a massive Teleportation Tower supplies the area's transmission arrays through an Underground Energy Circulation Device. 56

Its territorial defense is built around a network of major jurisdictions and Wizard Cities. Long-range teleportation arrays, city-protection arrays, and rapid reinforcement between nodes allow the Expanse to favor defense over direct invasion. 343

• Teleportation Tower — Powers the headquarters' teleportation arrays through its connection to the underground energy system. 56
• Wizard Cities — Function as smaller nodes in the territorial defense network. 343
• Border Wizard Cities — Received resources and Formal Wizard deployments during the conflict with Natural Ring Tower. 339
• Mortals — Considered assets of the Umbral Expanse; harming them without authorization is treated as a violation of its fundamental rules. 159

Rules and Internal Discipline

The Expanse's rules apply to all members, including Formal Wizards. Its prohibition on the unauthorized killing of mortals distinguishes it from many other Wizard Forces. 164 204

During the Grand Internal Investigation, the Rule Supervision Department summoned wizards back to headquarters and punished those found to have violated regulations. Wizard Yis regarded the purge as necessary to preserve fairness, justice, and the Expanse's ability to attract future wizards. 164 170

• Wizards who break the rules may be arrested, stripped of authority, imprisoned, or placed on wanted notices. 170 237
• Quota Missions can authorize members to eliminate outside wizards who endanger mortals within Umbral territory. 159
• The Berkeley Family was declared traitorous after killing Enforcement Wizards and resisting enforcement; its members became targets for apprehension. 170

History

Wang Ya arrived at the Umbral Expanse as a freshman intending to join its academy. By that point, the force was already a major regional Wizard organization with its own headquarters, academy, mission system, and territorial infrastructure. 1 55

During the Evil God Incident, the Umbral Supreme Council ordered the capture of Gendas's avatar for a joint Wizard Experiment. At the time, Umbraly Light led the Expanse's affairs because Umbral remained in seclusion. 89

Years later, internal corruption and external pressure prompted the Grand Internal Investigation. The resulting crackdown targeted rule-breakers, including Deno Laufe and the Berkeley Family. 164 170

The Expanse fought Natural Ring Tower across its border cities, initially relying on its teleportation network and defensive arrays. The conflict was later revealed to have been part of a broader scheme: the two forces cooperated to destroy the Ocean Corridor and Rotten Land and divide the resulting resources. 343 355 359

After this victory, Umbraly Light transferred the Decision Maker position to her brother, Umbral Wizard. His leadership was widely accepted because of the Expanse's wartime gains. 359 361

The force's decline began when Umbral Wizard and Nature Wizard Gunas reached the Rank 3 Radiant Moon stage under circumstances tied to Andersen's manipulation. Andersen sought to merge the Umbral Expanse and Natural Ring Tower into a new force, the Gloomy Ring Tower, under his Soul Seals. 375 377

The confrontation devastated the headquarters. Umbraly Light and its surviving wizards witnessed the Expanse in a ruined, deathly still state, and later accounts described it as belonging to the past. 380 394

Relationships

• Natural Ring Tower — Rival force during the Mountain Sea conflict; later cooperated with the Umbral Expanse to destroy other Wizard Forces before Andersen attempted to force a permanent merger. 343 355 377
• Wizard Umbraly Light — Rank 2 leader and former Decision Maker; she administered the Expanse during Umbral's seclusion and later yielded authority to him. 89 359
• Umbral Wizard / Umbral Darkness — Umbraly Light's brother, Rank 2 Star Wizard, and later Decision Maker whose actions became central to Andersen's scheme. 351 359 375
• Wang Ya / Nightmare Wizard — Umbral Child, Umbral Hand member, and later the strongest active defender of the headquarters during the Radiant Moon crisis. 172 374
• Ocean Corridor — Wizard Force destroyed through the joint campaign of the Umbral Expanse and Natural Ring Tower. 355
• Rotten Land — Another Wizard Force destroyed during the same period of regional expansion. 355

Trivia

• The Expanse lacked Particle Energy Crystal Storage Technology, a strategically important technology for maintaining spellcasting capacity during invasions of other worlds. 266
• The Star Moon Archway is one of the Expanse's foundational assets and can function as a wartime transmission system. 268
• The strongest members of the Expanse could access the Nether Wizard Ruin and methods for advancing toward Rank 2 Wizard through the Umbral Star qualification. 287