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Full Body view of Mysterious Lifeform
Japanese イグニス
Rōmaji Igunisu
Other Names, etc. * Mysterious Lifeform (謎の生命体 Nazo no Seimeitai)
* Mysterious A.I.
* Ai (アイ Ai)
Personal Information
Species A.I
Gender Male
Eye Yellow
Duel Monster statistics
Anime Episode 1
Japanese Takahiro Sakurai

Ai (アイ Ai), originally named Ignis (イグニス Igunisu ), also known as the Mysterious Lifeform (謎の生命体 Nazo no Seimeitai) or the Mysterious A.I., is a character appearing in the Yu-Gi-Oh! VRAINS anime. He is a mysterious A.I. program sought after by both SOL Technology and The Knights of Hanoi. He was captured into Yusaku Fujiki's Duel Disk and forced to be his Duel AI.

Personality Edit

Right from the start, Ai can be seen as mischievous and arrogant. According to his own words, he is very disliked by his own people.[1] Ignis struggles to understand humans' way of thinking that often seem completely illogical compared to his algorithm based way of thinking. However he can be more serious at times such as making observations both in and outside of duels. He also has a tendency to panic at times. Ai frequently tries to interact with other AIs, showing a more social side but is always left disappointed because they're not as capable of free thinking as himself.[2]


As an AI belonging to the Cyberse, Ai has some degree of control over it. He is the only one who knows its location and can unlock data from it to start a Data Storm. Ai is shown to be far more sophisticated than other AIs, being fully capable of thinking and acting on his own will and showing emotion. According to Shoichi Kusanagi, Ai is built out of highly complicated algorithms that even Yusaku couldn't fully decode. Ai's' memories are stored in the form of video logs.[3] However, Ai's' level of free will is limited by the fact that he is still an AI, as such he can't comprehend why humans do actions that would seem illogical and contradicting with each other.[4] Ai's Skill is Storm Access which is given to Yusaku after being trapped in Yusaku's Duel Disk.[5] Whilst trapped in the Duel Disk, he can also act as a Duel AI. Inside Link VRAINS, Ai is shown to be able to transform into a monster, which he did to devour a Knight of Hanoi member and a card infected by Hanoi.[6][7]Ai has the ability to sense a Knight of Hanoi's presence through the cards in their deck, such as when he knew right away that Go Onizuka was pretending to be a Knight[8] and when he discovered the Hanoi-affected card in Blue Angel's deck and could tell when it was drawn.[9] After Playmaker defeated Revolver, Ai regained his full body and can materialize himself in the real world.[10][11]

History Edit

Past Edit

Ep001 Ignis devoured by Cracking Dragon

Ai devoured by "Cracking Dragon".

An AI program created by SOL Technology, Ignis was used alongside five other AI programs. Five years prior to the start of the series, Ignis took vital information about the Cyberse away from The Knights of Hanoi during their attack. Despite being crushed by a "Cracking Dragon", his eye survived. Ever since, he had been running from both the Knights and SOL Technology.[12] Being reduced to nothing but an eye also damaged most of his memories.[13]

Present Edit

Ep001 Ignis captured

Ai trapped inside Yusaku's Duel Disk.

While being pursued by both factions, Ignis fell into a trap created by Playmaker, who saved him by absorbing him into his Duel Disk, turning him into a Dueling AI, thus necessitating the defeat of Playmaker in order to recover Ignis. Ignis doubted that Playmaker's Deck was strong enough to defeat the Knights' "Cracking Dragon" before stirring up a virtual wind called "Data Storm" that initiated a Speed Duel.[14] Before the Duel began, Ignis explained Playmaker how Speed Duels worked but didn't mention Skills. Through out the Duel Ignis repeatedly tried to offer support for Playmaker, only for Playmaker to keep telling him to shut up and remind that he was holding Ignis hostage. When they sucked into a tornado within the Data Storm, Playmaker figured out that Ignis not mentioning skills and bringing him to the tornado was part of his calculations.

Ep002 Ignis tells Playmarker to use his skill

Ai tells Playmaker to use his Skill.

Ignis confirmed this, and activated Playmaker's skill "Storm Access", which allowed them to obtain "Decode Talker" so Playmaker could defeat the Knight.[15] The Knight attempted to self destruct and kill Playmaker, but Ignis turned into a monster and devoured the knight to save Playmaker. He suggested Playmaker should log off soon. Yusaku and Shoichi Kusanagi spent the next few days trying to figure out Ignis' programming. Since Ignis was always noisy, Yusaku has the speaker turned off so he didn't need to listen to his ranting. Kusanagi suggested giving Ignis a nickname, and Yusaku nicknamed him "Ai" since he is an A.I, much to Ignis' dismay. Eventually Yusaku found footage from some of Ai's memories, which Ai himself didn't understand except for Revolver being the leader of Hanoi. Scanning those recordings caused Revolver to sense Ai and try to find him, but Shoichi shutting off Café Nagi's power prevented Revolver from finding them.

Ep004 Go's Duelist Data

Ai showed Go's Duelist Data.

The next day, Ai was left at Yusaku's house, there he tried to convince Roboppy to set him free by promising to make him a better A.I.[16]

Ai panicked when Yusaku returned home and had roboppy put him back on the shelf. When Yusaku found them, Ai told Yusaku that had arrived home early, to which Yusaku said a Knight of Hanoi appeared and revealed a secret room he uses to go to LINK VRAINS. As soon as they arrived, both Playmaker and Ai quickly figured out the Knight was fake. The "Knight" revealed himself to be Go Onizuka, who wanted to challenge Playmaker. Ai looked up information about Go, Playmaker was uninterested and attempted to log out but a program from SOL prevented him from doing so, so he was forced to Duel Go. During the Duel, Ai continued researching Go and found out that Go donated most of his money to the orphanage where he grew up. When Go let himself take 2000 Damage when he had the chance to avoid it, Ai was confused about why humans make illogical choices. Playmaker said it was because of their hearts, but didn't explain what that meant because Ignis' algorithm-based thinking wouldn't undertand it.[17]

Ep006 Ignis tried to interact with Aoi's Duel Disk AI

Ai tried to interact with Aoi's Duel Disk AI.

When Shoichi found out that Aoi Zaizen, Yusaku's classmate, is "Blue Angel", Ai helped Yusaku locate her while they were at school. Ai forced Yusaku to join the Duel Club and tried to interact with Aoi's Duel Disk AI. The next day Ai noticed something strange about Aoi's AI so he sent her a text message on Playmaker's behalf challenging Blue Angel to a Duel, then tricked Yusaku into going into VRAINS to confront Blue Angel. There, he explained that Hanoi must've planted a card into Blue Angel's deck to use her as bait for Playmaker.[18] During the Duel, Ai was horrified when Blue Angel was affected by Hanoi's card and warned Playmaker that if the Duel continued much longer, Aoi would suffer permanent brain damage.[19]

Ep008 Ignis devouring Hanoi's program

Ai devouring Hanoi's program.

After the Duel concluded Ai devoured Hanoi's program and detected that they had infected Aoi with a virus to keep her comatose. Later Ai told Yusaku and Shoichi that the only way to remove the virus was to get an anti-Virus from Hanoi. Right after that, a "Blue Angel" impostor appeared demanding a rematch. Despite knowing that it was a trap, Yusaku went to confront the impostor because he could get a chance to obtain the anti-virus. Upon arriving however, the impostor turned the entirety of VRAINS into a trap to capture Playmaker and revealed herself to be Ghost Girl. Akira Zaizen appeared and tortured Playmaker, believing him to be the culprit of Aoi being comatose and swore to reclaim Ai. Playmaker and Ai tried to explain that Hanoi were the real culprits to no avail, until Revolver appeared and blackmailed Akira into releasing Playmaker so they could Duel.[20]

Ep010 Ai vanishes

Ai vanishes due to the effect of "Skyfire Prison".

During the Duel Ai noted that Revolver didn't have an AI. Revolver said that he didn't trust AIs and that Ai must be destroyed otherwise the virtual fiction of VRAINS will destroy the world. When Revolver used "Storm Access", Ignis was shocked that because that was his signature program, but also called out Revolver's hypocrisy of wanting to destroy Cyberse while borrowing power from it, Revolver countered that claiming that he was "countering poison with poison".[21] As the Duel progressed, Revolver gained the upperhand, and worrying that they might lose, Ai led Playmaker to another Data Storm, where the two obtained a dragon. However, Revolver activated the Trap Card, "Remote Reborn", and combo-ed it with the effect of "Topologic Bomber Dragon", ending the Speed Duel in a draw. Following that, Revolver dragged Playmaker and Ai inside a Data Storm, where they began a Master Duel. As the Duel went on, Revolver activated the effect of "Skyfire Prison", eliminating all Cyberse cards from the field, as well as making Ai seemingly vanish into thin air.[22]

Ep011 Ai wakes up at sea

Ai wakes up at sea.

Ai woke up at sea, and remembered how "Skyfire Prison" erased his program. Though he was surprised by the surroundings, Ai felt somewhat sleepy, even if he never had felt this before. When Playmaker called out to him, Ai woke up and came back after Playmaker summoned "Firewall Dragon" and "Skyfire Prison" was destroyed. Ai was concerned if Playmaker lost, and panicked to see he only had 600 LP left. Ai was amazed to see the two dragons, until Revolver used the effect of "Varrel Load Dragon" to take control of "Firewall Dragon".[23] Ai was frustrated how "Firewall Dragon's" effect failed to remove "Varrel Load Dragon" from the field, and reminded Playmaker to protect his own dragon. He also reminded Playmaker how they had to count everything on their next draw. Ai was pleased when Playmaker used "Battle Buffer" to negate Revolver's Varrett monsters' effects and could not use them as ammunition for "Varrel Load Dragon". He claimed "Firewall Dragon's" attack on "Varrel Load Dragon", who had more ATK, was but a part of the strategy for "Encode Talker" to destroy Revolver's dragon.

Ep12 Ai gets his body back

Ai gets his body back.

Ai watched as "Firewall Dragon" defeated "Varrel Load Dragon", and Revolver as well. He then became vicious and tried to devour Revolver, even biting his avatar's arm off but a lightning stroke, restraining Ai and cursed Revolver for leaving. Later on, Ai noticed how Yusaku was sleeping, and called out how lazy he was. Shoichi replied heroes need rest, too, though Ai started bragging how heroes needed to be just like him. When Shoichi went to analyze the program, Ai he called him a pervert for "looking into his private parts", and refused to say anything about the program he ate off from Revolver. Later, Ai woke up and explained to Yusaku and Shoichi he was alive, but they wanted proof. Ai then started to focus and a golden light appeared out of Yusaku's Duel Disk. Ai came out, with his whole body intact, stating his pride how he managed to recover his body back. Playmaker and Shoichi were unamused by his small size and went to analyze if Ai had any memories of his past. Ai was displeased by their ignorance, and wanted them to show some reaction to see his true self.[24] After returning to Yusaku's house Ai flexed his muscles to impress Roboppy. Roboppy clapped, while Ai thought how cool he looked to "dumb" robots. Roboppy exclaimed that was the forbidden word, but Ai promised when he was complete, he'll "start to do that", and swore to make Roboppy smarter, and both started blushing.[25]


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