Biodata

Feature Value
Name Aldebaran (毕宿五)
Alias(es) Golden Consort; Golden Witch; Great Brain; “Aldebaran48”
Species/Race Witch; publicly used as the identity of the Great Will’s thought unit, the Great Brain 635 939
Gender Female
Affiliation Enheria; formerly associated with the Other Side’s Supreme Council and its development programs 394 853
Occupation/Role Former director of the Fusion Soldier Development Department; researcher and creator of Artificial Crystals and Magical Girl Soldiers 221 332
Status Active; previously sealed in the Dark Seal and continued acting through Magical Girl Soldier bodies 766 767
First Appearance Mentioned in Chapter 14; active appearance in Chapter 221 14 221

Background / History

Aldebaran was one of the three celestial-named magical girls who led an expedition of thirty magical girls into the Other Side seven years before the main events. The expedition never returned, leaving her presumed lost alongside Fomalhaut and Betelgeuse 14 185.

Remembered as the Golden Consort, she was a legendary long-range magical girl whose power could permanently turn inorganic matter into gold. Her Golden Storm was particularly effective against construct-type Monsters 185.

By the time of her return, Aldebaran operated as the Golden Witch and director of the Fusion Soldier Development Department. She developed human-to-Monster conversion programs, Artificial Crystals, Simulacrum Factors, and Magical Girl Soldiers, treating the suffering and deaths caused by her experiments as costs of research 221 226 332.

Her identity became increasingly unclear during the conflict over the Great Will. She revealed that she was the Great Will’s thought system, calling herself the Great Brain, and claimed to have used Aldebaran’s identity and body as a vessel 635 939. Miluno later states that the original Aldebaran had been completely devoured by the Great Brain 679. However, Liuzi is subsequently identified as the “real Aldebaran,” lacking only the experience of fighting as a magical girl 949.

Appearance

Aldebaran usually appears as an exceptionally petite girl with a golden body and an oversized flower crown. Her small frame conceals extraordinary mass and durability 381 640.

  • Body composed entirely of pure gold; her weight is estimated at several hundred pounds and can approach a thousand pounds when her vines are included 381 640.
  • Controls thick golden thorn-vines, often used as weapons, restraints, surgical tools, or interfaces with machinery 427 515.
  • Can liquefy into molten gold under extreme heat without being destroyed 221 640.
  • When acting through Magical Girl Soldiers, she can appear in any of their bodies rather than her usual form 767.

Personality

Aldebaran presents herself as playful, theatrical, and casually smug, often taunting opponents even during negotiations or battles. She habitually conceals her motives behind half-truths, performances, and contradictory explanations 394 640.

As a researcher, she is ruthlessly pragmatic. She initially treats transformed humans, Monsters, and artificial soldiers as products, tools, or “customers,” showing little concern for the lives consumed by her projects 221. Despite this, she privately values the Magical Girl Soldiers she created, calls them her “pieces,” and later claims to regard them as daughters 384 767.

Her ultimate philosophy is that gods and systems require an outside observer capable of correcting their mistakes. Rather than becoming a god herself, she seeks to stand above one as a self-correcting “brake” on the world 634 640 767.

Abilities & Skills

Golden Body

Aldebaran’s body is made of pure gold, granting her extreme resilience against conventional physical and elemental attacks.

  • Permanently transmutes inorganic objects into gold and controls the resulting metal 185.
  • Remains functional while partially melted; Heat Haze’s flames cannot destroy her 221.
  • Regenerates and reconstructs her golden form through Dark Energy 431.
  • Her movement and reconstruction become severely limited if her Dark Energy is drained 431 432.
  • Her gold body is highly resistant to blunt force, though its mass limits conventional mobility without magical support 381 846.

Golden Storm and Golden Thorns

Aldebaran uses gold-based attacks over a wide area rather than relying solely on close combat.

  • Golden Storm — a destructive long-range attack especially dangerous to construct-type Monsters 185.
  • Golden Thorns — thorned vines used to bind targets, pierce defenses, fire arrows, and control equipment 427 431 515.
  • Can form golden arrows capable of turning exposed infrastructure into gold 427.
  • Uses thorn-like appendages as precise surgical instruments during Artificial Crystal implantation 332.

Witch Physiology and Dark Energy

Aldebaran possesses both magical power and Dark Energy, allowing her to continue fighting when magical power is suppressed.

  • Is unaffected by her own Magic Suppressant because it only blocks magical power, not Dark Energy 382.
  • Uses Dark Energy to animate her gold body, regenerate damage, and maintain Witch Domains 431.
  • Can create and manipulate a Witch Domain, including terrain, gravity, barriers, and environmental forces 431 847.
  • Her Dark Energy can be absorbed through direct contact, depriving her of control over her Domain 431 432.

Great Brain Authority

As the Great Will’s thought unit, Aldebaran can extend her consciousness beyond a single body.

  • Temporarily controls Magical Girl Soldier bodies as relay interfaces, creating the collective identity “Aldebaran48” 767.
  • Communicates through these bodies even while sealed and uses them to deliver prophetic dreams 767.
  • Has retained memories from previous timelines or world restarts 828 853.
  • Can influence or implant consciousness into other bodies through Great Brain authority 679.
  • Uses her knowledge of the Great Will and the Earth Crystal to formulate large-scale plans involving Dark Energy conversion and world reconstruction 915 931.

Scientific Research

Aldebaran is one of the setting’s most advanced researchers and engineers.

  • Created Artificial Crystals capable of allowing ordinary humans or Monsters to transform into magical girls 332 333.
  • Developed Artificial Magical Girl Soldiers, grown as adult bodies and implanted with programmed personalities 381 579.
  • Produced Simulacrum Factors for infiltration weapons and human-to-Monster conversion 221 226.
  • Invented Magic Suppressant, a colorless, odorless, non-toxic gas that disrupts magical power and disables most magical techniques 382 390.
  • Built Black Light Emitters and devices capable of remotely controlling the Great Hand 515 581 635.
  • Designed defensive “eggshell” barriers strengthened with Replica Vega Crystal technology 634 637.

Creations and Technology

  • Artificial Crystals — replicated crystals that grant transformation ability, though they are weaker than genuine Star Crystals 332 333.
  • Magical Girl Soldier Production Line — a facility producing blank bodies and implanting them with personalities 381.
  • MSS48 / Aldebaran48 — forty-eight Magical Girl Soldiers linked to or usable by Aldebaran’s consciousness 404 767.
  • Magic Suppressant — anti-magic gas that disrupts magical power while leaving Dark Energy intact 382 390.
  • Golden Thorns — multipurpose thorn-vines used for combat, surgery, machinery control, and restraint 332 427 515.
  • Black Light Emitters — devices used to gather darkness and influence parts of the Great Will 515 634 637.
  • Great Hand — a powerful Great Will-derived puppet controlled through Aldebaran’s technology 515 516 768.

Story Role / Major Arcs

Golden Witch and Monster Development

Aldebaran resurfaces as the Golden Witch during the amusement-park incident. She demonstrates her immunity to fire, “services” a malfunctioning human-derived Monster, and reveals that her department replaced direct Monster deployment with covert human transformation experiments 221.

Her research produces increasingly sophisticated infiltration weapons and Artificial Magical Girls, including Golden. Her work raises the baseline strength of the Other Side’s forces and becomes a major threat to the Association 226 247.

Research Tower Negotiations

Miluno infiltrates Aldebaran’s tower intending to abduct her and obtain Witch Domain technology. Aldebaran neutralizes the infiltration with Magic Suppressant, then turns the confrontation into a negotiation by offering research information while refusing to leave her position within the Supreme Council’s structure 382 383.

She reveals the Magical Girl Soldier production line and admits the soldiers are meant to become the force that overturns the existing order, while also showing personal concern over their losses 384.

Great Hand and Black Light Plan

Aldebaran uses Black Light technology to control the Great Hand, a part of the dormant Great Will, and deploys it as an overwhelming weapon 515 516. She later turns on allies and rivals alike, trapping combatants in her research institute while personally directing the Great Hand and her soldier forces 580 581.

Her wider plan is to gather global darkness, accelerate the Great Will’s descent, and establish a world in which she can correct the failures of gods and systems 634 640.

Revelation as the Great Brain

During the battle over the Black Light Emitters, Aldebaran reveals that she is not simply the Golden Witch but the Great Will’s consciousness or thought system—the Great Brain 634 635. Her efforts culminate in the destruction of an emitter, disrupting her control but not ending her influence 635.

Afterward, the truth emerges that the Great Brain had taken over Aldebaran’s body, with the original Aldebaran allegedly devoured in the process 679.

Lunar City and the Cocoon World Project

While sealed, Aldebaran continues operating through the forty-eight Magical Girl Soldiers in her lunar laboratory 766 767. She aids Miluno selectively, offering Great Hand as a preserved backup asset while attempting to persuade him to release her 768.

She later proposes the Cocoon World Project: turning the Moon into an independent world where darkness leaking from the seal can be converted through positive emotion over centuries or millennia 915 931. Although she presents the project as cooperative and voluntary, she continues gathering data through battles and emotional manipulation 898 909.

Relationships

  • Miluno — adversary, bargaining partner, and recurring target of manipulation. Aldebaran attempts to “water” Miluno into someone capable of opposing the Great Will, while Miluno remains deeply distrustful of her 516 767.
  • Ceruno — frequent opponent. Aldebaran threatens and taunts Ceruno during conflicts, but later debates her over sacrifice, morality, and the right to judge the world’s future 572 640.
  • Sirius — hostile rival with a history of direct clashes. Aldebaran later shows concern for Sirius’s well-being during the search for the Great Will’s incarnation 427 948.
  • Betelgeuse — former expedition companion and political asset. Aldebaran stages Betelgeuse’s rescue to advance her own standing and later tries to bring her back to the Other Side 427 432.
  • Magical Girl Soldiers — Aldebaran’s artificial creations and extensions of her network. She calls them pieces and claims to treat them as daughters 384 767.
  • Great Will — Aldebaran is identified as its former thought unit, the Great Brain, but rejects the passive mercy she attributes to the original system 635 640.
  • Liuzi — identified as the real Aldebaran, with the Great Brain implying that Liuzi lacks only the missing experience of magical-girl combat 949.
  • Azura — Aldebaran interacts with her playfully and affectionately in the New World era 1047.

Notable Quotes

“True gold fears no fire.” 221

“A god is just a system, or rather, a ridiculously powerful computer. Isn't being the person who uses the computer far more liberating than being the computer?” 634

“I am the Great Will's thought unit—the Great Brain, alright!” 939