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The Ignis (イグニス Igunisu) are AI with free will from the Yu-Gi-Oh! VRAINS anime, created by Dr. Kogami through the Hanoi Project.[1] They created and inhabit the Cyberse. According to Varis, the Ignis are out trying to conquer the network.[2] For this reason, the Knights of Hanoi led by Varis are trying to destroy all the Ignis with aid in this mission from Dr. Kogami.

Although the Knights were unsuccessful in destroying the Ignis, most of them met their demise during the conflict with humanity that Lightning instigated; Earth was captured by George Gore and brought to SOL Technologies to be terminated, while Windy, Aqua, and Flame were all absorbed by Bohman due to either losing Duels or their current partners losing Duels to Bohman; Lightning did not technically lose his last Duel, but was weak enough to be absorbed by Bohman nonetheless. Unlike Bohman's other victims, the Ignis were not restored after Bohman's final defeat, leaving Ai as the last remaining Ignis in existence.



Ignis are humanoid life forms with disproportionate bodies that are smaller than a Duel Disk, though they can change their size and appearance at will.[3] In their natural height, the list goes (from tallest to shortest): Earth, Ai/Flame, Lightning, Aqua, and Windy. Their bodies have colored lines which matches the Attributes they represent. They can also shape-shift into monstrous forms when expressing strong emotions.


The Ignis are made of a complex algorithm that only very few can translate. Because of their free will, they can think for themselves. The Ignis have quickly evolved to create their own world in the network called the Cyberse, populated by the Cyberse monsters. Their intelligence made them feared by Dr. Kogami, whose simulations showed the Ignis eventually dominating over humans. Ignis can regenerate by recovering their data unless some of the data is stored in another program or avatar. So far, however, the Ignis are unable to leave the network completely and must remain connected to a source, such as a Duel Disk or a SOLtis.

The Ignis are able to control the Data Material their world has created and can create smaller worlds individually. They can also summon Data Storms at will and create shields with this ability. Each Ignis has a different strength or power from the others, such as Windy being the most adept in controlling Data Material, Lightning being the quickest, Aqua is the most perceptive and Ai is the wisest, has Link Sense and has instinct.

Each of the Ignis recognize themselves with one of the main six Attributes of Duel Monsters. Their elements seem to tie into what monster they can shape-shift into, an example being Flame, the Ignis associated with FIRE, becomes a fire demon when he's very excited.[4] The Ignis communicate through a specific code and dialogue that humans can't decode, making it a foolproof language that sounds like distorted white noise. In addition to their code, each Ignis' real name is too complicated for humans to understand.

There are some limitations to the Ignis' level of free will. Both Ai and Flame have shown to have trouble understanding metaphors, sarcasm, or rhetorical questions. They also tend to jump into conclusions very quickly and not consider alternate possibilities for the outcome of events. Another area that they share is their lack of social skills, most notably Windy and Earth who tend to be blunt and straightforward, while Flame tends to make bizzare suggestions like turning his Duel Disk into a car. Lightning on the other hand took Dr. Kogami's intentions to make the Ignis the successors of humanity too literally, interpreting it as having the Ignis rule over humans. Furthermore, the Ignis tend to be very selfish at times as seen when Windy only cared about himself, when Earth resented humanity, when Lightning humans and Ignis that thought differently from him and when Ai was lying to Yusaku in order to escape and make it back to the Cyberse. These traits combined with the fact that they never thought of coexisting with humans prior to the attacks on the Cyberse give reason as to why the Knights of Hanoi hunt them.

As noted by Yusaku, when Ignis are treated with hostility they respond by becoming more hostile themselves, while treating them with trust and respect makes them more willing to live with humans, as seen with Ai and Flame. It was the Knights of Hanoi's initial attack that made the Ignis question humanity's intentions and led Lightning and Windy to turn against humans, prior to that the Ignis were only interested in living in the Cyberse peacefully.


Ignis means "fire" in Latin. Dr. Kogami named them after the theft of fire legends, in which the forbidden fire allowed humans to rapidly evolve.[2]



Dr. Kogami kidnapped six children, among them Yusaku Fujiki, Spectre, Takeru Homura, Jin Kolter, and Miyu Sugisaki, and forced them to Duel so he could use the data collected from those Duels to create AI with free will. Those AI, dubbed the "Ignis" by their creator, created the Cyberse World where they lived together away from humans and also created the Cyberse monsters. A product from the Ignis creating the Cyberse World was Data Material, which processed data thousands of times faster than the current data processor. The leader figure of the Ignis was the LIGHT Ignis, Lightning, with the vice leader being the WATER Ignis, Aqua. However, the Ignis soon developed more rapidly than Dr. Kogami had originally planned. Through simulations of their growth, Dr. Kogami could only find that they would overthrow humanity and so created the cyber-terrorist group the Knights of Hanoi to destroy them.

Many of the Ignis were captured by the Knights of Hanoi.[5] One of the Ignis, the "DARK Ignis", tried to rescue the others, but he was caught and eaten by a "Cracking Dragon". He survived, but lost most of his data (including his body) and was reduced to an eye.

After the DARK Ignis hid the Cyberse, the remaining five Ignis were freed from their binds and discussed if they should share their technology with the humans in order to establish peace between the races. Flame and Aqua advocated for coexistence with humans, Earth was neutral, while Lightning and Windy were against humanity. However, an unknown force attacked the Cyberse, hitting its weaknesses and destroying the Ignis' homeworld. The Ignis were forced to flee to the network and have so far not been seen. The only one confirmed to have gone to the real world is Flame, the FIFE Ignis, who found his Origin, Takeru Homura.


The injured Ignis eventually escaped into Den City where he was later captured by Yusaku Fujiki (Playmaker) and Kal Kolter.[5] As he was an AI and an eye at the time, they decided to nickname him "Ai". Ai later reclaimed his body from the Knights of Hanoi after Playmaker defeated Varis.[6]

Tower of Hanoi[edit]

After his Duel with Faust, Yusaku grew suspicious of Ai. Ai also started behaving suspiciously, apparently manipulating Playmaker into blatantly ignoring the Knights of Hanoi whenever it seemed like they were about to explain why they're hunting the Ignis. In the Tower of Hanoi incident, the Tower threatened to wipe out the entire network, which would destroy the Ignis in the process. Varis then explained the origins of Ai and the other Ignis, making Yusaku more suspicious about the Ignis. Ai admitted that he only lied so that he could survive and return to the other Ignis.

Ignis Warfare[edit]

Three months after the Hanoi Tower incident, Ai reopened the Cyberse. However, the world was barren and none of the Ignis were found. Flame, one of the Ignis that escaped, was assisted by Takeru and later Ai and Yusaku in order to find the other four. Kolter was able to find an area in the Restricted Area made from an Ignis' programs, identified to be the WIND Attribute.[7]

Inside the Restricted Zone, the WIND Ignis, Windy had built a pocket world for the Ignis to come together. Windy didn't trust humans and wanted him and the other Ignis to rebuild Cyberse World.[8] The EARTH Ignis, Earth, didn't trust humans either, but he challenged Playmaker to a Duel to determine whether Ignis could coexist with humans or not.[9]

Ai was freed from the Duel Disk by Windy's trap, and was summoned for a meeting with him and the LIGHT Ignis, the latter of whom Ai nicknamed "Lightning". He and Windy told Ai their plans to rebuild the Cyberse in an isolated location from humans and then asked Ai to join them because of his wisdom. When the two told Ai their plan to take control of humanity, the latter questioned it.


The Ignis refer to their humans as their Origins, as they are based on the six kids of the Hanoi Project. Some of the Ignis have turned to support humanity, and have joined their Origins, while others decided to fight against humanity, believing it to be the best solution for the world. Both Lightning and Windy believe their human partners would corrupt them. Thus, Lighting put Jin under his control, while Windy injured his partner.


Silhouette (full)[edit]


Eye Form[edit]

True Form[edit]


  • The Ignis appear to develop various similarities and differences in personalities from their original partners.
    • Ai has wisdom and instinct just like Yusaku, except he is more playful, while Yusaku himself is more brusque and serious.
    • Flame is energetic and courageous just like Takeru as Soulburner, except he is more confident, while Takeru himself in the real world is more humble and quiet.
    • Earth is socially awkward and loves what's important to him with fierce devotion just like Specter, except he is more caring towards others, while Specter himself can be cruel and sadistic at times.
    • Lightning is calm and collected just like Jin, except he is also arrogant, cold and manipulative, while Jin himself is very aloof and withdrawn.
  • Ai and Windy are the only Ignis who do not use the "watashi" pronoun in the Japanese version, as they instead use "ore" and "boku" respectively.
  • Each Ignis has a unique sound when they move their bodies, some of which are associated with their corresponding Attribute (Aqua sounds fluid, Earth sounds sturdy, etc.).
  • The conflict between the Ignis is parallel to the second season of Yu-Gi-Oh! GX, with light representing evil (Lightning (LIGHT Ignis) and Sartorius (possessed by the Light of Destruction)) and darkness representing good (Ai (DARK Ignis) and Jaden Yuki (empowered by the Gentle Darkness)).


  1. Yu-Gi-Oh! VRAINS episode 28: "Bugging Out"
  2. 2.0 2.1 Yu-Gi-Oh! VRAINS episode 11: "Neutralized"
  3. Yu-Gi-Oh! VRAINS episode 2: "Seize the Wind!"
  4. Yu-Gi-Oh! VRAINS episode 49: "Duelist Clad in Flames"
  5. 5.0 5.1 Yu-Gi-Oh! VRAINS episode 1: "Link into the VRAINS"
  6. Yu-Gi-Oh! VRAINS episode 12: "Link the Circuit"
  7. Yu-Gi-Oh! VRAINS episode 50: "Transfer Student Takeru Homura"
  8. Yu-Gi-Oh! VRAINS episode 55: "To the Unknown World"
  9. Yu-Gi-Oh! VRAINS episode 66: "Earth Ignis "Earth""