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Accel World characters (index)
Great Legions: Nega Nebulus | Prominence | Great Wall | Leoniz | Crypto Cosmic Circus | Aurora Oval | Oscillatory Universe
Other: Acceleration Research Society | Chrome Disaster | Other Burst Linkers | Enemies | Real World | Accel World/dural: Magisa Garden

A list of Accel World characters primarily associated with the villainous Acceleration Research Society.


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    "Black Vise" 

"Black Vise"
Voiced by: Nobuo Tobita (Japanese), Matthew Mercer (English)

The rather polite, well-spoken Vice-President of the Acceleration Research Society, and a Level 8 Burst Linker. He helped Noumi set up an ambush for Haruyuki and Taku to catch them off-guard during the sudden-death battle between them.

  • Affably Evil: He's very polite at all times, even when talking with his foes.
  • Berserk Button: For Chrome Disaster, being one of the avatars responsible for his suffering.
  • Casting a Shadow: Has the ability to hide inside shadows to travel at high speed or tail other avatars in secret. He can even carry other avatars and objects while doing this. Volume 15 reveals that he has also created a Portal Network of "shadow corridors" which members of the ARS use to travel to and from their base.
  • Detachment Combat: Some of his Incarnate techniques like Hexahedral Compression and Octahedral Isolation detach panels from his body and use them to crush or trap enemies.
  • Know When to Fold 'Em: Retreats once he realizes that he's fighting a losing battle (and he is on a stalemate with Kuroyukihime), vowing never to directly tangle with the Black King again while leaving Noumi at Haruyuki's mercy.
  • Lack of Empathy: Black Vise clearly shows signs of this as during the execution of Saffron Blossom.
  • The Magnificent: His alias of "Black Vise" is interpreted by the protagonists as a way of declaring himself equal to the Kings of Pure Color, as well as a slight against that color's rightful owner Black Lotus.
  • Move in the Frozen Time: Inverted. He's capable of slowing down his perception of time in the Accelerated World, making him the only avatar immune to the Year Inside, Hour Outside effect of the Accelerated World.
  • Noble Demon: In contrast with Noumi. He even shows due respect to Kuroyukihime for her skill as well as being the Black King, as well as Haruyuki for actually managing to elude his death trap.
  • One Steve Limit: An odd case in that he's supposedly the second black duel avatar. It's unclear whether "Black Vise" is his official name.
  • Punch-Clock Villain: Black Vise is described as sounding like a businessman instead of a fighter.
  • Shout-Out Theme Naming: Like the real black king Black Lotus, he shares his name with a banned Magic: The Gathering card, albeit not one that's part of the iconic "Power Nine". This is also a major hint to his true identity: "Black Vise" and "Ivory Tower" have identical costs and exact opposite effects.
  • Suicide Attack: His third-stage Incarnate technique Icosahedral Insulation is a cross between this and Metamorphosis. It transforms his entire body into an incredibly durable cage around his opponents, and traps him in that form until he's killed. One of his allies comments that this speaks to a strange mindset that places more trust in enemies than in friends.
  • Vocal Dissonance: In-Universe, Chrome Falcon comments that he sounds a good deal older than those who have been wearing Neurolinkers since they were born.
  • Voluntary Shapeshifting: Among his abilities, he can arrange his panels to imitate the shape and voices of other avatars. This disguise is imperfect, however, and once he steps out of the shadows it's obvious that his body is still flat. This is a hint that his Shapeshifter Default Form is also fake.
  • The Walls Are Closing In: The usual application of his ability is trap people by pressing black blocks against them.

    Dusk Taker 

Seiji Noumi/Dusk Taker
The least rage inducing pic we can find.
Voiced by: Sanae Kobayashi (Japanese), Amanda Céline Miller (English)

A first-year entrant to Umesato (with Haru, Chiyu, and Taku moving onto the second year). After soundly defeating Taku in a kendo exhibition match, Haruyuki and gang discover that he is a Burst Linker with some way of hiding his name on the matching list, meaning he can only be challenged through direct cable matches. His special ability is to steal special attacks, equipment, and skills from other Burst Linkers. The effect is also permanent unless he voluntarily reverses the effect as opposed to just lasting for the duration of a match.

  • Achilles' Heel: In addition to the limit to the number of powers he could use, he cannot steal Incarnate skills (because it comes from the Burst Linker's own will and is not predetermined by the system) and abilities not related to his own traumas. Thus, he can only steal abilities from Duel Avatars whose abilities are not specific to their own traumas.
  • Amnesiacs are Innocent: Seiji loses all his memories of Brain Burst upon defeat. When Haruyuki meets him again in real life, Seiji's smugness is gone and he has become a nice boy.
  • Arc Villain: He is the main antagonist of his eponymous arc.
  • Bad Powers, Bad People: He doesn't just copy abilities, he steals them. And then blackmails his opponents if they want them back.
  • Big Brother Bully: Has one. The main reason he is such an asshole.
  • Bitch in Sheep's Clothing: Appears as a nice guy to most people. But he's actually a very Smug Snake.
  • The Bus Came Back: He returns in Volume 13, when the kendo club performs at the school festival. It soon turns out that Wolfram Cerberus III has Noumi's memories and personality
  • Combat Tentacles: The stolen power he usually equips to his left arm.
  • Dark and Troubled Past: Was evidently abused by his brother, until he decided to kill him in the game.
  • Death by Depower: Gets a Taste Of His Own Medicine when the "healer" he blackmailed undoes his theft of Silver Crow's power, while in mid-air, allowing Crow to kill him.
  • Dirty Coward: Grovels at Haruyuki, Kuroyukihime, Chiyuri and Takumu's feet begging for what remains of his BP once it became clear that Chiyuri has been working against him all along, Haruyuki has turned the tables on him, and that the rest of ARS left him on his own. Haruyuki would have none of it.
  • The Dog Bites Back: After becoming strong enough and gaining the opportunity, Noumi kills his abusive brother repeatedly, and takes great pleasure in it.
  • Evil Counterpart:
    • Apart from colour scheme, Dusk Taker and Silver Crow with their special abilities inactive look very similar (the main difference is Taker having bulkier neck/shoulder armor). Taken further when Taker steals Crow's wings. He also cheats his way through his grades through the use of Brain Burst, much like Taku did before his Heel–Face Turn. Taku even figures out the exact moment Noumi accelerates to cheat on a test in order to challenge him to a duel.
    • One can argue he's also what Haru could've been like if life were to pushed him too far. Both have suffered from bullying in the past. While Haru is fat and stubby, Noumi is Lean and Mean. Whereas Haru worked his way through Brain Burst with sheer hard work, Noumi uses deceit and manipulation to get his way.
  • Faceless Eye: The head of his Duel Avatar looks like this.
  • Faux Affably Evil: He exhibits a superficial level of politeness to his enemies, addressing them as his senpais, but when the conversation turns to Brain Burst, he shows his mocking and condescending side.
  • Fire-Breathing Weapon: One of the stolen powers he can equip to his right arm; long-ranged and strong enough to melt rock.
  • Freudian Excuse: He was bullied by his brother, and had everything taken away from him.
  • Freudian Excuse Is No Excuse: Seiji had a fairly difficult childhood growing up under the thumb of his Big Brother Bully who exploited Seiji and forced him to turn over his points on a regular basis. Seiji ultimately became strong enough to kill his brother's Duel Avatar repeatedly until Yuichi was driven off Brain Burst, then later became a similar bully himself when he began extorting Haru the same way. The most sympathy Haru has for him after learning of his backstory is expressing his belief that they could have been friends if they'd met as normal Burst Linkers (and he isn't too put out when Seiji laughs it off), and considering that all other Burst Linkers derive their special abilities from various trauma, Seiji isn't the only Burst Linker with a tragic past.
  • Game-Breaker: Considers himself one of these In-Universe after Dust Taker starts combining Silver Crow's flight with powerful ranged weapons.
  • Good Wings, Evil Wings: After stealing Silver Crow's aviation ability his wings are considerably more demonic looking.
  • Hate Sink: By all indications, he's a low-level member of the Acceleration Research Society, but he's one of the most unpleasant and despicable characters in the series. Considering what a Jerkass Smug Snake he is, even his Freudian Excuse is still not enough to move the fanbase, and considering that he gloats about it, it doesn't inspire much in Haruyuki, either. The most sympathy Haru has for him is suggesting that they might have been friends if they'd met as normal Burst Linkers, but Noumi scoffs at the suggestion.
  • Healing Factor: One of his abilities that he stole.
  • Mind Wipe: Lost all his memories of Burst Link after it was forcibly removed from him after losing to Haruyuki, proving Kuroyukihime's theory that uninstalling the program will also erase its user's memories of playing it.
  • Obviously Evil: His duel avatar. Averts this completely in real life.
  • Power Parasite: Dusk Taker has the Demonic Commandeer ability which permanently steals abilities, techniques and equipment from other Burst Linkers to use for himself. While there is a limit to how many he can use, he can still use multiple ones at the same time.
  • Shapeshifter Mashup: Downplayed. When using multiple stolen powers at once (and their corresponding body parts) his avatar can look quite bizarre, though it remains mostly humanoid.
  • Skull for a Head: Underneath the visor, his avatar's head is quite skull-like; it becomes briefly visible when he uses Demonic Commandeer.
  • Smug Snake: Very smug and always looking down on people treating them like insects. As a result, he doesn't even consider the possibility of Haru turning the tables on him or Chiyu betraying him.
  • Stop Having Fun Guy: Noumi sees Brain Burst and Acceleration solely as a means to advance himself in the real world. He openly mocks any sense of friendship and camaraderie fostered by the game and refuses to refer to himself by the "childish moniker Burst Linker. And he has no problem looking down on anyone who does not share his point of view.
  • Troubled Abuser: Treats others the way his older brother treated him. It's used to make him seem petty rather than sympathetic.
  • With Great Power Comes Great Insanity: Having the combination of Power Parasite powers, Freudian Excuse Is No Excuse, and being Drunk with Power. He becomes a total monster when he stole several Burst Linkers abilities.
  • Villainous Breakdown: Once it became clear that all his plans are rapidly falling apart, even more so once he realized that Chiyuri only played him so she can restore Haruyuki's wings, finally descending into a whimpering mess begging Haruyuki to spare his last BP.

    Sulfur Pot & Nidhogg 

Sulfur Pot
Voiced by: Nobuyuki Hiyama (Japanese), Derek Stephen Prince (English)

A Burst Linker who dives into Okinawa while being in Tokyo using a backdoor program.

  • Fluffy Tamer: Loses this ability upon defeat. Kuroyuki eventually takes said ability (legally) as a gift from the Okinawa players.
  • Playing with Fire: In a rather different way, the primary ability that he is seen using is Charcoal Smoke which releases gun powder into the air that can be ignited and catch fire. Which he used in combination with Nick.
  • Smug Snake: Overconfident to a fault, with absolute certainty in his belief that he and Nick are the ultimate partners.


A Legendary Enemy of the Unlimited Neutral Field, he is controlled by Sulfur Pot.

  • Fluffy the Terrible: Is given the name Nick by Sulfur Pot.
  • Meaningful Name: In Norse mythology, Níðhöggr (Malice Striker, often anglicized Nidhogg) is a dragon who gnaws at a root of the World Tree, Yggdrasil.
  • Pet the Dog: When he is freed from his control he did not try to attack Black Lotus, Coral Merrow, and Lagoon Dolphin even after attacking Sulfur Pot.

    Rust Jigsaw 

Rust Jigsaw
Voiced by: Satoshi Hino (Japanese) Sean Chiplock (English)

A Level 6 trap-oriented Burst Linker.

  • Arc Villain: After making a brief appearance in the Dusk Taker arc, he becomes the primary threat to the heroes in The Bridge Floating in Starlight arc.
  • Berserk Button: All of his actions are taken under orders. Do not imply that he's doing anything just to amuse himself.
  • Deadly Disc: His Wheel Saw ability sends a deadly rapidly rotating saw blade flying at his foe.
  • Just Think of the Potential: Going a step further than Noumi, he doesn't even enjoy the game aspects of Brain Burst, and is enraged by the sheer idiocy of people who would use such an incredibly powerful "lifehack tool" just to have fun. invoked
  • Make Them Rot: His use of the Incarnate System causes rapid corrosion of his targets' defenses. It doesn't work on corrosion-resistant metals like stainless steel.
  • Touch of Death: His second-order Incarnate ability, "Rust Touch".
  • Trap Master: His razor tripwires are designed to trap close-range opponents so he can dispatch them.
  • Verbal Tic: When he begins a sentence with a verb, he will often say it as its own sentence first (e.g. "Regret. Regret that you...")
  • Walking Wasteland: The effect of his Incarnate ability, "Rust Order". Very powerful (implied to be boosted through illegal use of a Brain Implant Chip) but takes a long time to prepare.

    Magenta Scissor 

Rui Odagiri/Magenta Scissor
A Level 6 Burst Linker who distributes "ISS Kits" - parasitic items that grant their user powers from the Incarnate System at the cost of their sanity.
  • The Aggressive Drug Dealer: In addition to offering her Kits to Burst Linkers in search of power, she and her clients also attempt to force the Kits on others.
  • Arc Villain: She and her ISS Kits are considered a serious threat for a good chunk of the story, though Scissor herself isn't always in focus since the Kings are more interested in finding the source of the Kits and destroying it.
  • Assimilation Plot: Downplayed. Wants to use the ISS Kits to remove any distinction between duel avatars, thereby making everyone equal. Nega Nebulus want to stop her not only because the Kit is screwing with Burst Linkers' minds, but because a Brain Burst where combat consists only of identical avatars trading Dark Shots and Dark Blows back and forth would be a dreadfully boring one. invoked
  • The Atoner: After joining Nega Nebulus she greatly regrets the suffering that she's put the Petit Paquet trio through, and goes out of her way to defend them in group fights.
  • Bandage Babe: Her entire body is wrapped in magenta bandages, leaving only her lower face uncovered.
  • Get-Rich-Quick Scheme: The ISS Kits have elements of a pyramid scheme, making their host more powerful the more they spread its spawn to others.
  • Getting High on Their Own Supply: Hidden under her bandages, she's infected by an ISS Kit herself. Justified in that the Kits reproduce by budding - her supply consists of her own Kit's "children".
  • Heel–Face Turn: In volume 19 she is recruited by Chocolate Puppeteer to join Nega Nebulus.
  • Hive Queen: Once the offshoots of her ISS Kit are fully integrated with their hosts, they become little more than mindless drones under her command.
  • Master of All: The Kit's abilities include two powerful attacks, one melee and one ranged, which turn any avatar into an all-rounder or allow them to shore up their weaknesses. Due to being based on the Incarnate System, these attacks are also difficult to counter for anyone who can't use Incarnate abilities themselves.
  • Psycho Serum: The Kit allows its user to enter a powerful "IS Mode" but steadily eats away at their sanity, even while not using Brain Burst.
  • Shear Menace: Her main weapon is a pair of scissors which can cut from a distance, though it's normally kept split into two blades.
  • Strong, but Unskilled: Most of her infectees forget their avatar's normal abilities and rely entirely on the Kit's "Dark Shot" and "Dark Blow" attacks. While powerful, their lack of variety means that the heroes quickly get used to dealing with them. Scissor herself is an aversion, both retaining all her original skills and mastering her Kit to the point where she can use its attacks without an activation command.
  • The Symbiote: Once a duel avatar equips an ISS Kit, it fuses with them and manifests as a blood-red eye somewhere on their body. Separating the two afterwards is difficult, and can require different methods depending on the victim.
  • Unwitting Pawn: Appears to have been merely set in motion by the ARS rather than being an actual member of the organization.

    Avocado Avoider 

Avocado Avoider

A duel avatar shaped like a giant avocado with spindly arms and legs. Was abandoned by his "parent" for his ridiculous appearance, and nearly stripped of all his points until Magenta Scissor took him in.

  • Alliterative Name: Avocado Avoider.
  • Cephalothorax: Has a mouth on his torso, but no eyes or head.
  • The Dragon: To Magenta Scissor.
  • Fighting Clown: Despite his bizarre appearance, he's a useful ally in a fight.
  • The Power of the Void: What the "Avoider" in his name really means.
  • The Quiet One: Retains his personality despite the influence of the ISS kit, but speaks mostly in sentence fragments.
  • Stone Wall: His avocado flesh reforms when struck by physical attacks. Even if his main body is completely destroyed, his core (an avocado pit) can sprout limbs and escape.
  • Swallowed Whole: His primary means of attack is to hold enemies in his mouth and dissolve them.
  • Time Stands Still: Things inside his stomach do not experience the flow of time, though they still take damage.

    Wolfram Cerberus 

Wolfram Cerberus/Wolfram Disaster
A Level 1 Burst Linker with a triple-personality problem.
  • Anti-Villain: The least malevolent of the ARS Linkers, to the point that he actually asked Haruyuki to help him deal with his personality split, and actually defending him from Argon Array.
  • The Brute: After his transformation into Wolfram Disaster, he fills this role for the Acceleration Research Society.
  • Clothes Make the Maniac: Becomes the unwitting host of the "Armor of Catastrophe Mk2", created by fusing part of Scarlet Rain's Invincible with the sum of the anger and resentment stored in the ISS Kit core. In book 22, Black Vise takes to calling Cerberus's monstrous new form "Wolfram Disaster".
  • Death Seeker: When Cerberus sees Silver Crow again in the Unlimited Neutral Field, he does so in the hopes that Crow will kill him and remove him from Brain Burst for good.
  • Dungeon Bypass: His strength and durability allow him to create shortcuts by charging through walls.
  • Game-Breaker: In-universe example. Wolfram Cerberus has three different abilities, one per personality. The main head has <<Physical Immunity>> which renders him impervious to direct physical attacks of any kind. The second head has <<Wolf Down>> which allows it to temporarily copy someone's ability upon chomping a part of their body. The third head can install Virtual Ghosts of other Burst Linkers to gain their powers. Best of all is, he has this at level 1.
  • Hero Killer: Makes his entrance by defeating Silver Crow while only at level 1. After his transformation into Wolfram Disaster he's powerful enough to fight all the Kings of Pure Colour at the same time.
  • Lightning Bruiser: Having a body of wolfram (i.e. tungsten), he's sturdy enough to punch through walls like paper, yet agile enough to knock Crow out of the air. Being on the far-right of the metallic colour spectrum, though, his defence against energy-based attacks is less than amazing.
  • Meaningful Name: He has three split personalities, much like the mythological Cerberus has three heads.
  • Multiple Head Case: Has a helmet shaped like a wolf's head, and similar armour on each shoulder. When the visor on his main head closes, one of his shoulders can open to reveal a different face with its own personality (referred to as Cerberus I, II and III respectively).
  • No-Sell: While Physical Immunity is active, he cannot be harmed by direct physical attacks. Energy attacks still work, however, and he still suffers collision damage if thrown.
  • Not So Different: He ends up doing to Silver Crow what Silver Crow did to Cyan Pile - beating a higher level player by virtue of a special and almost illegal ability.
  • Power Copying:
    • Cerberus II's ability "Wolf Down" lets it bite off a piece of another avatar, both dealing damage and granting him a copy of that avatar's powers for a short time.
    • Cerberus III can house the Virtual Ghost of another Burst Linker, taking on their personality and abilities. So far this ability has been used to copy Dusk Taker and Orchid Oracle.
  • Power Parasite: With Dusk Taker's Virtual Ghost temporarily in control of his body, he steals Scarlet Rain's five-part Enhanced Armament "Invincible", which manifests for him as a humanoid purple Humongous Mecha with smaller cannons but large claws. Most of Invincible is returned due to Lime Bell's intervention, but Cerberus escapes with the thruster component.
  • Speed Blitz: As Wolfram Disaster, briefly firing his thrusters lets him move fast enough to One-Hit Kill even high-level avatars before they know what's happening.
  • Split Personality: Three, in fact.
  • Super Toughness: His body is composed of tungsten and tungsten carbide, making it almost as strong as diamond. And that's before he activates his Physical Immunity ability.
  • Suspiciously Similar Substitute: Veteran burst linkers note that his jagged metal body, personality and rapid rise to fame make him alarmingly similar to Magnesium Drake, who would go on to become the second Chrome Disaster.
  • Villain Override: His superiors are capable of forcibly activating Cerberus III, causing its personality to take over his body.
  • Villainous Underdog: Downplayed. He first fights Silver Crow when he's Level 1 and Crow is Level 5, but happens to have a Super Toughness ability that's a perfect counter for Crow's focus on hand-to-hand combat.

    Argon Array 

Argon Array
A Level 8 Burst Linker with the special ability to scan her enemies' stats. "Parent" of Wolfram Cerberus.

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