Void

Biodata

Power Progression

Nature and Origins

• Connection to the Abyss: The Void Heart is described as a product of the entire Abyss and receives its protection. This makes its holder genuinely undying while within the Abyss—even Jiang Xiaofeng cannot kill himself there 95.
• Distinct from Elemental Power: Void Power can imitate elemental effects without being Elemental Power. Lumine confirms this after producing black hurricanes, Starfell Swords, and lightning through a Void Eye 164.
• A domain under active control: The Void stores captives, creatures, collected bodies, and research materials. It also responds to Jiang Xiaofeng’s orders, including opening a gateway to swallow and analyze the Strium Ray 185 197 200.
• Not inherently safe: Jiang Xiaofeng gives The Collector a Void Eye specifically to prevent the domain from devouring him during experiments 200.

Internal Structure

Jiang Xiaofeng’s constructed world is only a bubble within the larger Void, not the entirety of it 205.

Abilities & Skills

Assimilation and Devouring

Void Power corrodes targets, absorbs their energy, and converts that energy into more Void Power 126.

• Works on Elemental Hypostases, Vision wielders, Delusions, and the Miasmic Tumor 126.
• Normally causes non-Void lifeforms to suffer a backlash, lose reason, and become slaughter-driven monsters unless Jiang Xiaofeng intervenes 84.
• Can consume entire environments: the Dead Cells island, its Lighthouse, and part of the seabed are erased without a trace 103.
• Scales to worlds and celestial systems. Jiang Xiaofeng consumes an alternate Teyvat and later an entire star system containing Cybertron 154 182.
• Can convert a planet’s core into Void energy, as demonstrated on Earth 225.

Evolution and Ability Acquisition

The Void Heart enables its holder to grow stronger, adapt, and acquire the use of energies he absorbs 95.

• Void enhancement at least doubles a demon god’s combat strength; continued absorption within the Void can increase it further 143.
• Absorbed organisms and gods contribute abilities and biological data for later experimentation 149 161.
• Technological assimilation extends to Ark, Zea, the AllSpark, and the production of mechanical lifeforms 182 205.
• Evolution is not automatic mastery: Jiang Xiaofeng later recognizes that his Void-based offensive techniques have stagnated and seeks new energies to develop them 250.

Imagined Effects and Creation

Jiang Xiaofeng can use Void Power to wield abilities he imagines, but must personally enact them and make them take effect 95.

• This is not passive reality favoring him. To achieve an effect comparable to “words becoming law,” he must first erode the relevant space with Void Power 95.
• For ordinary people without Visions, one week of exposure allows Void Power to read and enhance them, then bring abilities they conceive into use 145.
• Creates matter, weapons, armor, and replicas from stored information. Analyzed Ruin Hunters, Ruin Graders, and Ruin Serpents can be mass-produced 122 145.
• Reproduces gods and Abyss Heralds once their data has been obtained 149.
• Reshapes terrain and entire regions, culminating in the constructed world bubble 205.

Memory Analysis and Ley Line Integration

The Void can extract memories from Ley Lines and preserve information about the dead 101 232.

• Jiang Xiaofeng draws Diluc’s father’s memories from the Ley Lines, manifests him, and infuses him with Void Power 101.
• By the Black Tide invasion, Void Power and Teyvat’s Ley Lines exist in symbiosis: the Void prevents memories from disappearing, while the Ley Lines supply memories of fallen demon gods for reconstruction and experimentation 232.
• Void-enhanced Dead Cells monsters continually spawn in Mondstadt, resembling monsters born from the Ley Lines 232.

Healing, Resurrection, and Continued Existence

Void Power can restore health and sustain life beyond ordinary death 67 133 145.

• Stabilizes the injured Paimon after Jiang Xiaofeng pours power into her 67.
• Restores the health of elderly but physically sturdy followers 133.
• Allows empowered adventurers to revive after death and repeatedly attack monster concentrations 145.
• Supports the return of the fallen Yaksha; a Void Eye can simulate their former elemental powers 202.
• Its usual cost is postmortem conversion: users’ souls enter the Void after death and become Void creatures 255.

Tendrils, Restraint, and Gateways

Void Power forms chains, hands, tendrils, and portals 73 98 244.

• Tendrils restrain captives and drag them into the Void, including The Doctor 200.
• Can suppress a captive’s abilities: Decarabian loses access to his power when wrapped in tendrils 149.
• A Void Venti opens a black doorway directly to Lumine 244.
• Eldest’s tendrils withstand electrical attacks and soul skills, while Void Power crushes hostile systems 290.

Void Eyes and Technology

Void Eyes

Void Eyes distribute Jiang Xiaofeng’s power independently of Visions and Delusions 104.

• Void Eyes can store armor and weapons, support flight, and simulate elemental abilities 133 145 202.
• Jiang Xiaofeng can regulate the power supplied to bearers. He considers daily limits and allocation based on the user’s strength 114.
• Unauthorized extraction or copying triggers assimilation of living beings present, including the host supplying the power 114.
• Void Eyes destroy compromised Akasha Terminals, protecting their bearers during The Doctor’s attack 268.
• Power distribution also enables coercion: unwilling Akademiya scholars receive Eyes that warp their subconscious into accepting the Void God as their new god 198.

Void Armor

Void Creatures

• Early survival limitation: Newly born ghosts repeatedly perish without Vessel masks. The remaining energy eventually concentrates into three durable brothers 65.
• Shared affinity: The Knight recognizes their power as kin rather than something incompatible with him 73.
• Intangibility: The early creatures are spirit-like beings that ordinary Teyvat physical and elemental attacks cannot hit 73.
• Growth is not simple refueling: One brother tells Jiang Xiaofeng that the converted power he offers cannot strengthen them; it can only produce more of their kind 74.
• Soul interaction has limits: The shadow near the Border Between Life and Death consumes lingering souls, but cannot touch souls passing on normally 73.
• Experimental capacity: Jiang Xiaofeng initially fits only four powers into an artificial Void creature, compared with six in a creature converted from a demon god 161.
• Intelligence varies: Within the constructed world, Gatanothor’s signals help creatures awaken thought; Void creatures and mechanical lifeforms subsequently evolve independently 205.

Associated Entities

• Jiang Xiaofeng — Controls the Void, develops its applications, distributes its power, and constructs its internal world 95 104 205.
• Eldest / The Knight / Void God — One of the creatures born from Jiang Xiaofeng’s power. Develops in Hallownest and later defeats system holders using Void tendrils and overwhelming physical strength 65 141 290.
• Ark and Zea — Analyze technology, support the Void Knights’ equipment, and build the Mechanical City’s network. Jiang Xiaofeng gives them portions of the AllSpark to become mechanical lifeforms 182 205.
• The Collector and Albedo — Research Void life and artificial humans. Their experimental Hollow Knight becomes uncontrollable until Jiang Xiaofeng reverses it into moss and a small ghost 170 172.
• Osial and Orobashi — Gods converted or strengthened through Void Power and brought under Jiang Xiaofeng’s command 84 143.
• The Doctor — Both a captive experimental subject and an independent researcher of Void Power; uses it in his Akasha and Shouki no Kami schemes 200 268 270.

Terminology

• Void and Akasha are distinct: Their shared Chinese wording prompts Jiang Xiaofeng’s confusion in Sumeru. He later models the Void’s internal network on the Akasha’s capabilities 185 205.
• “Void” is also Jiang Xiaofeng’s assumed name: He introduces himself by that name to Bai Ye. The negation ability used in that confrontation belongs to his Stand, The World, rather than being identified as an inherent property of the Void domain 216 219.