Void Beast

Biodata

Feature	Value
Name	Void Beast (虚空兽)
Alias(es)	Demons (historical term) 65
Species/Race	Aether-based lifeforms composed of Demonic Aether 70 308
Classification	Neutral Character (AI)
Affiliation	None; some are organized or controlled by stronger Void Beasts through command-type Proto-Domains 170 371
Status	Extant
First Appearance	Chapter 10

Power Progression

Stage / Realm / Level	Chapter	Notes
General-class → King-class	71	General-class individuals that consumed enough dead King-class or fellow Void Beast flesh could grow dramatically and evolve into King-class.
Ghost Grade → Dragon-class	128	A Ghost-Tier Nest-born beast absorbed black magical liquid from fallen offspring, grew from 20 to 29 meters, and neared Dragon-class evolution.
Ghost Grade → Dragon-class	161	A black beam from the Mount Fuji Magic Array forced two Ghost-Tier beasts past the 40-meter threshold into Dragon-class, while others became near-Dragon Ghost-Tier creatures.
Dragon-class, Second Evolution	175	A newly hatched Void Sword Dragon consumed its eggshell and grew to 68 meters, reaching the peak of Second Evolution.
Dragon-class, Third Evolution	177	A Dragon-Tier Void Beast stabilized in its Third Evolution before being defeated by Ando Meiko, Chris, and Asahina.
Peak Dragon-class → God-class	340	The First Demon King, originally a Peak Dragon-class Void Beast, fused with the corpses of the First Demon King and a True Dragon, comprehended the Law of Death, and reached God-class.

Classification

Void Beasts with lord-level strength are classified by the quality of their Demonic Aether. Their known hierarchy is Soldier-class, General-class, King-class, Ghost Grade, Dragon-class, God-class, and World-Destroying-class 29.

• Soldier-class — Can be defeated by a magical girl with reasonable combat skill. 29
• General-class — Requires a magical girl with substantial battle experience. 29
• King-class — Normally demands a party of at least three experienced magical girls. 29
• Ghost Grade — Possesses rudimentary intelligence and may employ a weak rudimentary domain; ancient-species Ghost Grade beasts can rival ordinary Dragon-class creatures. 63 128 180
• Dragon-class — Can wield a Proto-Domain, possesses significantly greater intelligence, and may undergo multiple Evolutions. 63 175 216
• God-class — Can possess a complete domain; a God-class Insect Demon God required two Ultimate Magical Girls to defeat. 63 318
• World-Destroying-class — The highest listed rank. 29

Biology

Demonic Aether Physiology

Void Beasts are living aggregates of Demonic Aether. Their bodies are inherently hostile to ordinary life and can contaminate the Void World around them. 17 70

• Their Demonic Aether can be consumed by other Void Beasts without loss, allowing the consumer to heal or strengthen itself. 70 308
• Destroyed bodies often become black fluid, which nearby Void Beasts can absorb. 70 127
• Burning corpses to ash prevents surviving beasts from using them as nourishment. 205
• Dense Demonic Aether drives Void Beasts into a frenzy and can draw underground populations to the surface. 173

Feeding and Regeneration

Void Beasts readily consume their own kind, treating wounded or dead allies as resources rather than losses.

• A Ghost Grade beast healed a chest wound by crushing and consuming General-class Void Beasts. 71
• General-class beasts that fed on King-class remains gained opportunities to evolve. 70
• Nest-born Ghost-Tier beasts can absorb the liquid remains of their offspring to accelerate their growth. 128
• Some varieties possess extreme regeneration; the Humanoid Void Beast can recover even after being cut in half. 139

Reproduction and Nests

Void Beasts can reproduce through eggs, with Nest environments serving as breeding grounds and underground transit networks. 127

• The Ghost Grade Void Spider maintained cocoons containing eggs and weakened while laying them. 29 127
• In one Nest, egg-hatched infants rapidly grew to Ghost Grade by absorbing black liquid from the ground. 127
• Infant Void Beasts dissolve into black water after death, allowing other Nest inhabitants to absorb them. 127
• Nests suppress available magical power, while sustained combat favors Void Beasts because their dead reinforce surviving allies. 128
• Defeating a Nest's final boss causes the Nest to disappear. 310

Origin Cores

Peak Dragon-class Void Beasts can separate an immobile Origin Core containing their soul. A new body can be born from the core, allowing revival after the destruction of the main body. 219 233

• A Void Beast may have only one active main body and one Origin Core at a time. 219
• The Origin Core must remain intact for the Void Beast to truly survive bodily destruction. 219 233

Appearance

Void Beasts have no single fixed form. Most are black or dark-colored creatures saturated with Demonic Aether, but their shapes range from animals and insects to dragons, dinosaurs, and humanoids. 69 87 128 310

• Animal-like forms include wolves, dogs, spiders, gorillas, condors, octopuses, bears, elephants, lizards, wyverns, and serpents. 17 29 44 71 86 134 145
• Ancient-species forms such as tyrannosaurs and stegosaurus-like dragons are markedly stronger than modern-species counterparts. 128 134 175
• Humanoid forms can resemble humans closely enough to conceal their identity, despite carrying an icy and evil magical presence. 135
• Other-world forms mimic the local creatures and magical beasts of the world they inhabit, such as the barbed, multi-eyed Arrow Rat. 310
• Dragon-class individuals can become enormous fantasy-like creatures with scales, wings, horns, and specialized body structures. 87 175 215

Intelligence and Behavior

Lower-ranked Void Beasts generally act on instinct, while Ghost Grade and higher entities display increasing intelligence, planning, and adaptability. 71 87

• General- and King-class creatures typically advance and attack by instinct. 71
• Ghost Grade creatures can assess danger, preserve themselves, use weaker allies as expendable forces, and coordinate limited tactics. 71 128
• Dragon-class creatures can speak human language, understand body language, and possess emotions comparable to those of animals such as monkeys or dolphins. 87 216
• Exceptional Dragon-class individuals, such as Pride, demonstrate human-like speech and tactical awareness. 215 216
• Command-type Proto-Domains allow a Dragon-class Void Beast to direct large groups, turning otherwise disorganized swarms into coordinated forces. 170 371
• Void Beasts are instinctively drawn to powerful or unusual Aether sources, including Ando Meiko's Destiny Body and the Mount Fuji ritual's evil energy. 71 160

Abilities & Traits

Evolution

Void Beasts evolve by accumulating and consuming Demonic Aether, especially from other Void Beasts. 70 71

• Consumption can restore injuries, increase physical size, and raise rank. 70 71
• Evolution may occur rapidly during large-scale beast tides or in resource-rich Nests. 71 128
• Artificial energy sources, including the Mount Fuji Magic Array's black beam, can forcibly trigger evolution. 161
• Higher Evolution stages among Dragon-class Void Beasts substantially increase their combat power. 175 177

Domain Prototypes

Dragon-class Void Beasts can use incomplete domains, called Proto-Domains or Domain Prototypes, which affect only themselves rather than a large area. 63

• Their effects vary widely, including defense, control, command, lightning attacks, and object transformation. 170 175 195
• A Void Earth Dragon used Object Transformation to create defensive shields and bind opponents. 195
• The Void Sword Dragon used a lightning-based Proto-Domain through the spines along its back. 175
• Command-type Proto-Domains can coordinate armies across a battlefield. 170 371
• Only God-class Void Beasts can possess full domains. 63

Adaptation and Imitation

Some Void Beasts can alter or imitate forms and abilities.

• The Ghost-Tier Void Tyrannosaur reassembled its scattered body parts and changed from a sludge-like mass into a bipedal tyrannosaur. 128
• The Humanoid Void Beast could imitate Armament Magic and replicate some magical abilities, but could not copy Advancement Magic or form shifts. 136 171
• Void Beasts in other worlds imitate local beasts and magical beasts, adapting their forms to their environment. 310

Mental Interference

Certain intelligent or specialized Void Beasts possess mental or sensory attacks.

• The Humanoid Void Beast uses a gray aura to lock onto targets and briefly daze them. 136
• A Void Two-Headed Lion can unleash a mental attack through the collision of its two roars. 372
• Humanoid Void Beasts may disrupt minds, imitate combat methods, and heal from otherwise fatal wounds. 139

Notable Void Beasts

• Void King Serpent — A King-class Void Beast encountered during Ando Meiko's early experiences in the Void World; Xiphias defeated it alone. 14 29
• Void Spider — A Ghost Grade breeder that guarded eggs in cocoons and demonstrated a rudimentary domain. 29 63
• Void Gorilla — A recurring opponent that evolved into Dragon-class and later reached Second Evolution before Ando Meiko finally defeated it. 111 210
• Void Lizard — A Dragon-class, lava-colored subterranean lizard with volcano-like humps; it was taken away by Voidwalker after its battle with Ando Meiko. 145 150
• Ghost General — A Humanoid Void Beast capable of regeneration, magical imitation, cloning, and absorbing Demonic Aether from fallen Void Beasts. 171 196 205
• Void Sword Dragon — A 68-meter Dragon-class creature at the peak of Second Evolution; its horn was a weakness, while its spine generated destructive purple lightning. 175 176
• Pride — The first-ranked of the seven strongest Dragon-Tier Void Beasts, known as the Wings of Death and Evil. 215
• Wrath — The third-ranked of the seven strongest Dragon-Tier Void Beasts. 215
• First Demon King — A Peak Dragon-class Void Beast that fused with the remains of a True Dragon and the First Demon King, later reaching God-class through the Law of Death. 340

History

Void Beasts existed as early as Japan's Edo period, when they were known as demons and magical girls were called demon-slaying ninjas. 65

They traditionally remained underground or within the Void World, but disturbances to the Void Seal and Dragon Vein caused Demonic Aether to surge outward. The resulting contamination drove Void Beasts into frenzied surface attacks, creating Nests around the world. 173 180

During the Mount Fuji incident, a Magic Array sacrificed a Void Lizard and countless other Void Beasts to fuel a ritual intended to create an Evil God vessel. The ritual's power attracted a massive Void Beast Tide and forcibly evolved multiple individuals. 160 161

Void Beasts also appeared in another world through the Ravine Nest. There, their forms adapted to local magical beasts, and the First Demon King was revealed as an extraterrestrial Peak Dragon-class Void Beast that had infiltrated the world's history. 310 340

Story Role / Major Arcs

• Initial encounters — Void Beasts pull Ando Meiko into the Void World and force her to confront the danger of her new magical-girl identity. 10 17
• Tokyo beast tide — General-, King-, and Ghost-Tier hordes demonstrate their capacity to evolve by devouring their own dead. 69 70 71
• Osaka crisis — The emergence of Dragon-class Lust and a prolonged Void Beast Tide establishes Dragon-class creatures as a city-level threat. 84 87
• Underground Nest expedition — Ando Meiko and Renka discover the breeding, growth, and ancient-species adaptations of Nest-dwelling Void Beasts. 127 128
• Mount Fuji ritual — Void Beasts are used as sacrifices and are forcibly evolved amid the attempt to summon an Evil God. 160 161 162
• Global Nest outbreak — Void Rifts and leaking Demonic Aether trigger worldwide Nest formation and beast tides. 173 180
• Ravine invasion — Adapted Void Beasts invade another world, where the Human Race and Dwarf Clan unite against them. 310 311 315
• First Demon King conflict — The true identity of the First Demon King as a God-class Void Beast is exposed before Ando Meiko defeats it with the World Sword. 336 340