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Articles about
Kirito
AincradPost-AincradGameverse

Kirito ALO
I'll never let anyone in my party die as long as I'm standing. That's the last thing I'd let happen!
~ Kirito to Leafa, recalling his experiences from SAO

Kirito GGO copy
How can he stay so calm in these circumstances? No... it's not being calm. He's going all out. He's not making excuses. He's choosing to use every ounce of ability he has to fight. That's his strength.
~ Sinon narrating how Kirito fights

Kirito ALO2 copy
Sorry, but this place... is off limits.
~ Kirito to an entire raid party

ORDINAL SCALE KIRITO
We all suffered back then, but I won't lose to a guy that rejects the past cause he thinks he suffered more.
~ Kirito to Eiji

Kirito UW Full Body
Yeah. ...That said, it might just be a plan to make us worry by threatening us, huh. Let's not forget our composure and stay cool.
~ Kirito to Eugeo

AnimeJapan 2019 Kirito goods visual
When I took up a part-time job at the venture company with many mysteries surrounding it, «Rath», the Fluctlight Acceleration of the STL was explained as a maximum of three times of the usual pace to me. But that was likely, no, unmistakably a lie. Judging from various data, I have currently estimated the degree of my current FLA to have reached at least a thousand times. If that number was accurate, the approximately two years I have spent in this world would end up as a mere eighteen hours in the real world. That ridiculous amplification must have made me feel the days here to be short, coupled with the lack of danger to my life as well.

...No.

There might also be one other reason, perhaps.

That would be how I felt my life here... especially the days I spent in the Sword Mastery Academy with Eugeo, Sortiliena-senpai, Ronye and Tiezé, to be enjoyable. Despite how entering the academy and polishing my swordsmanship should have been for the sake of escaping this world even a single day earlier. The wish to continue these enjoyable days from the depths of my heart was truly what made the time stream by so quickly.

In that case, that would be a betrayal. Of those who should be anxious over my body in the real world, Asuna, Sugu, Sinon, and the rest.

I wonder if this was retribution for that betrayal. To meet a bloodstained end in my Sword Mastery Academy life, and to be bound to the ground in a place without the slightest hint of sunlight—

~ Kirito's internal monologue a day after he and Eugeo were captured and taken to prison.

Kirito with Blue Rose Sword Better
There was a strong, fundamental desire within me to distance myself from the Kirito avatar I had cultivated in the SAO days: the Black Swordsman and the Dual Blades master. I wasn't able to analyze the precise cause of that feeling. Maybe it was a desire not to be treated like a hero. Maybe it was guilt over those people whose lives I'd failed to save or ended. Either one could be true, but it might also have been something completely different that I had yet to figure out.

All I knew for certain was that no matter how much I might dislike it, Kirito the Black Swordsman was a part of me, had helped shape who I was now, and was giving me strength.

The same man who'd fought in that world— the same me— was still here.

~ Kirito

Uokpl
Then, I will fight for Underworld only. Because... I'm the protector of that world.
~ Star King Kirito's statement to Higa Takeru

Summary

Kirigaya Kazuto (桐ヶ谷 和人, Kirigaya Kazuto), born as Narusaka Kazuto (鳴坂 和人なるさか かずと, Narusaka Kazuto), and known as «Kirito» (キリト, Kirito) in «Sword Art Online» is the protagonist of the main Sword Art Online series. Kirito was chosen to be one of the one thousand beta testers for the closed beta of Sword Art Online, the first ever Virtual Reality Massively Multiplayer Online Role-Playing Game (VRMMORPG) for the NerveGear, and later joined the official version of the game. He thus became one of the 10,000 players who were trapped in Sword Art Online, where he remained a solo player for the majority of the game, willingly taking on the role of a Beater to reduce discrimination against other former beta testers, as well as actively taking part in Boss battles as one of the Clearers.

During his time in SAO, Kirito temporarily became a member of the Moonlit Black Cats after helping them safely escape a dangerous dungeon, but returned to being a solo player when a fatal error resulted in the death of the other guild members, driving him even further away from ties with other people. At some point in the game, Kirito became known as the «Black Swordsman» (黒の剣士, Kuro no Kenshi) due to his tendency to wear black clothing and remaining solo. Near the end of the game, Kirito's heart began to open up once more when he started meeting the one who would eventually become the love of his life, Asuna, and the two begin bonding with each other, growing as individuals in the process. With his newfound love and drive to see his loved ones in the real world once again, Kirito slain the final boss of the game, returning everyone to the real world.

After Sword Art Online, there were many other adventures he undertook with both Asuna and the allies he made in Sword Art Online, both in other virtual reality games, augmented reality, and a simulation of another world.

Powers and Stats

Tier: 10-A | At least 9-A | 9-C physically, higher with a FN Five-seven, 9-A with a Kagemitsu G4 | 9-C physically, higher with Incarnation | 8-C physically, higher with Sacred Arts, High 8-C with Incarnation, 8-C with Enhance Armament | At least 8-C physically, higher with Sacred Arts, 8-C with Enhance Armament, 8-A with the Blue Rose Sword's Release Recollection, 7-B with Incarnation and the Night Sky Sword's Release Recollection | 7-B with Incarnation and Release Recollection

Key: Real Life | ALO (Fairy Dance & New Aincrad) | GGO (Phantom Bullet) | Beginning of Alicization/Pre-Goblin Fight | Post-Goblin Fight/Human Realm Arc | War of Underworld Arc | End of Alicization/Star King

Name: Kirigaya Kazuto, Kirito, The Black Swordsman (The title that others give him), Kirito the Swordsman (The title that he gives himself), Beater, Narusaka Kazuto (Birth name), Star King (The title that was given to him in the Underworld with Asuna for 200 years)

Origin: Sword Art Online

Gender: Male

Age: 14 at the beginning of the Aincrad arc (SAO), 16 at the end of Aincrad arc (SAO) & the beginning of the Fairy Dance arc (ALO), 17 in the Phantom Bullet arc (GGO), New Aincrad (ALO), Ordinal Scale movie (OS), & the Alicization arc (UW) (19 within UW at the end of the Human Realm arc, 20 within UW and mentally in the real world at the End of Alicization (EoA) after having his Star King (SK) memories wiped. 220 as Star King Kirito (231 if including UW childhood memories))

Classification: Human, SAO Survivor, High School Student, Spriggan (ALO), Former Swordsman (UW), Former Valet (UW), Former Elite Swordsman-in-Training (UW), Representative Swordsman of the Human World Unity Council, eventually to Star King (UW), Artificial Fluctlight (Star King (SK) Kirito was separated from End of Alicization (EoA)/Current Kirito, making them two completely different people)

Power and Abilities:

Superhuman Physical Characteristics, Accelerated Development (Leveling; Abilities), Regeneration (Low-Mid over time (Low-Mid over time (All VR Avatars can regenerate entire limbs within 2-3 minutes). Kirito specifically can survive for a long time with a blade stabbed through his chest)), Skilled Swordsman and Marksman, Skilled Hand-to-Hand Combatant, Damage Boost (All attacks have either a low chance of critically hitting the opponent or hitting a weak point to critically hit them, dealing even more damage. The two forms of critical hits can stack), Statistics Amplification (Sword Skills amplify the user's speed and power, with the downside of leaving a small post-motion stun (Though Skill Connect negates this downside). Note that before New Aincrad, ALO didn't allow the use of Sword Skills), Status Effect Inducement (via Sword Skills. If one can directly land a Sword Skill on an opponent towards a vital point such as the head, the opponent will be stunned for upwards of 10 seconds), Enhanced Senses (via Hypersense and Distinguish), Analytical Prediction, Healing (Accelerating recovery via Recovery Potions over a period of 5 minutes), Status Effect Inducement Nullification (via Antidote Potions. Only works against debuffs on Kirito's power or below), Flight (Can fly with his ALO Avatar's wings for ten minutes before being forced to land pre-New Aincrad. Post-New Aincrad he's able to fly for an unlimited amount of time), Immortality (Types 2, 4, and 8. All VR Avatars are able to respawn after being slain, so long as their real life bodies are safe), Hypermobility (VR Avatars do not have muscles and insides like real people do. Thus, they are able to do impossible motions that people in real life would not be able to do), Night Vision (via being a Spriggan), Illusion Creation, Magic (Can imbue his swords with fire, ice, thunder and darkness post-New Aincrad, as well as summon a large explosion of black smoke. Spriggans also have Magic that allows them to find treasure easily), Magic Negation (via Spell Blast. Is able to negate a spell by hitting its hitbox, aka its very center), limited wall running (via being a lightweight race), Supernatural Willpower and limited Reality Warping (via Proto-Incarnation. In times of extreme brain activity reaching to one's Fluctlight, or soul, the user can temporarily enact change on the world to an extent via their willpower or imagination. Usually, it has been displayed to enact improbable feats, such as delaying death, breaking out of system paralysis, bypassing system-enacted rules, and more that can be described as "surpassing the system"), Resistance to Pain (All virtual reality avatars have a pain absorber, which lessens the amount of pain one feels to negligible amounts, even with injuries such as decapitation)

Peak Human Physical Characteristics, Accelerated Development (Leveling; Abilities), Regeneration (Low-Mid over time (All VR Avatars can regenerate entire limbs within 2-3 minutes)), Skilled Swordsman and Marksman, Skilled Hand-to-Hand Combatant, Enhanced Senses (via Hypersense and Distinguish), Plasma Manipulation, Heat Manipulation, Attack Reflection, Analytical Prediction, Supernatural Willpower and limited Reality Warping (via Proto-Incarnation. In times of extreme brain activity reaching to one's Fluctlight, or soul, the user can temporarily enact change on the world to an extent via their willpower or imagination. Usually, it has been displayed to enact improbable feats, such as delaying death, breaking out of system paralysis, bypassing system-enacted rules, and more that can be described as "surpassing the system"), Immortality (Types 2, 4, and 8. All VR Avatars are able to respawn after being slain, so long as their real life bodies are safe), Hypermobility (VR Avatars do not have muscles and insides like real people do. Thus, they are able to do impossible motions that people in real life would not be able to do), Resistance to Pain (All virtual reality avatars have a pain absorber, which lessens the amount of pain one feels to negligible amounts, even with injuries such as decapitation)

Peak Human Physical Characteristics, Accelerated Development (Leveling; Physical Stats, Abilities), Skilled Swordsman and Marksman, Analytical Prediction, Skilled Hand-to-Hand Combatant, Enhanced Senses (via Hypersense and Distinguish), Statistics Amplification (Sword Skills amplify the user's speed and power, with the downside of leaving a small post-motion stun (Though Skill Connect negates this downside)), Supernatural Willpower and passive Reality Warping (via Incarnation. As with all VR avatars, especially in the Underworld, Incarnation grants all the ability to alter reality via their conscious and subconscious belief and willpower, and can be described as many people sharing a single dream, with greater control of Incarnation being likened to "lucid dreaming"). The primary applications of Incarnation are as follows: Empowerment, Statistics Amplification and Statistics Reduction (Belief in one's own strength will amplify one's own power, however the opposite can happen to the user as well if they are not confident in a matchup), Limited Law Manipulation (If enough people believe that something cannot happen, it will become impossible and vice versa), and Probability Manipulation (If an Incarnation user truly believes that they are weaker than their foe, even subconsciously, reality will be rewritten to ensure their defeat (and vice versa). If both sides are both completely confident in a battle, it will be a battle to see who's mental willpower is stronger than the other). Unconventional resistance to Soul Manipulation (Fluctlights, the human soul, are referred to as Quantum Fields)

Same as previous, in addition to Superhuman Physical Characteristics, Attack Reflection and Shield Creation (via Sacred Arts, Can create a mirror that can reflect light attacks), Darkness Manipulation (via the Night Sky Sword and Sacred Arts. The Sacred Arts variant is primarily used to search for objects), Light Manipulation (via the Night Sky Sword (Absorbed a light-based attack from Fanatio) and Sacred Arts), Energy Absorption (via the Night Sky Sword. Able to absorb "Resources" (energy) within a far-reaching range and release it in any way he sees fit, whether that be unleashing it as a wave of darkness, increasing the size of his sword, or making his attacks stronger), Magic & Creation (via Sacred Arts. Can create a spell or an object for almost any situation, so long as he knows the words used to arrange his thoughts, guide his emotions, and fuel his imagination to create said spell or object), Ice Manipulation (Can create ice structures via Sacred Arts, such as when he created a five-layered ice shield), Poison Negation (via Sacred Arts), Heat Manipulation (via Sacred Arts), Healing (via Sacred Arts), Elemental Manipulation (via Sacred Arts. Can use the elements or elemental objects of all kinds), Homing Attacks (via Sacred Arts. Can make his Sacred Arts home in on enemies). Kirito also gains additional applications for Incarnation, which are as follows: Life Manipulation (Is able to transfer life energy over to another), can increase the range of his attacks, and transform into his SAO Avatar.

Same as previous, in addition to Ice Manipulation (Can use the blue rose sword to trap people with vines, or even a whole block of Ice), Life Manipulation (via the Blue Rose Sword. Continuously and passively saps the health of all those frozen), Transmutation (via the Night Sky Sword. Turned PoH into a tree), Enhanced Energy Absorption (via the Night Sky Sword. Able to absorb stars to power himself up. Also has shown to heal anyone within a large radius through releasing the absorbed energy). Kirito also gains additional applications for Incarnation, which are as follows: Weapon Creation (Capable of generating metal blades inside of a person's heart), can create giant black wings to fly, Forcefield Creation (Can create "imagination barriers" from one's mind to block attacks), Telekinesis (via Incarnate Arms. By imagining one's arm in a different location, one can freely interact with objects from a distance), can create invisible weapons (via Incarnate Blades. By imagining a weapon, one can form it), Age Manipulation (Reversed the age of two fully grown dragons from a distance back to when they were just eggs within seconds), Immortality (Types 2 and 3; Able to continue fighting as long as he believes in himself, no matter how many body parts of his comes apart), Regeneration (Mid; Regenerated his entire lower half from being chopped off and healed from having his heart ripped out of him by Subtilizer)

All previous abilities enhanced, in addition to Longevity (Lived for over 200 years in the Underworld alongside Asuna. Should be comparable to Quinella, as Star King Kirito and Star Queen Asuna cracked all of the secrets that Quinella had discovered in her lifetime). Should also have all of Quinella's abilities (And most likely to a higher level of them), as he grew stronger within those 200 years while Quinella remained stagnant, having rediscovered and cracked all of Quinella's secrets to reforge the Underworld

Attack Potency: Athlete level (Managed to stab into Kanamoto Atsushi's thigh with a blunt umbrella. Defeated Sugou Nobuyuki and dented a car door by slamming his head into it. Was able to barely keep up with Eiji and can contend with Suguha, who is among the top 8 in the Japanese Kendo Nationals) | At least Small Building level (Though ALO bosses are stronger than SAO ones, the gap is not significant enough to be meaningful. Currently, the ALO clearing group is around the 30s in terms of floor number) | Street level physically (GGO avatars should be physically superior to real life ones. Can dismember limbs pretty easily and tackle monsters of similar strength), higher with FN Five-seven (The same as its real life counterpart), Small Building level with a Kagemitsu G4 (Can easily cut into monsters of this size) | Street level physically (Able to fight against multiple goblins at once and Lizard Killer Ugachi. Cut off Ugachi's arm with Sharp Nail), higher with Incarnation (Decapitated Ugachi with Sonic Leap empowered by Incarnation) | Building level physically (After leveling up significantly from the goblin battle, Kirito can hold his own against Integrity Knights who are capable of creating shockwaves on this level. Eugeo, after constant training and cutting through the Gigas Cedar for multiple days, managed to fell the massive tree, with Kirito not being too far behind in strength), higher with Sacred Arts (Normally more powerful than standard physical blows. Held off Deusolbert's Enhance Armament with spinning shield), Large Building level with Incarnation (Severed Quinella's arm and chest with a two-hit Vorpal Strike), Building level+ with Enhance Armament (Should not be weaker than the physical strength of the characters. Clashed with both Fanatio's and Alice's Enhance Armaments) | At least Building level physically (Likely leveled up significantly after helping slay Quinella) higher with Sacred Arts, Building level+ with Enhance Armament (Same as before), Multi-City Block level with the Blue Rose Sword's Release Recollection (Completely froze roughly 20,000 people with the Blue Rose Sword), City level with Incarnation and the Night Sky Sword's Release Recollection (Blocked out the sun's luminosity. Should be comparable to Subtilizer's own Incarnation) | City level with Incarnation and Release Recollection (At the very least comparable to his and Subtilizer's previous peak in power)

Speed: Athletic Human (Kirito could barely keep pace with Eiji when running) with Superhuman reaction speed in AR/real life (Could react to Eiji's attacks and eventually rip off the power source of his exosuit) | Supersonic+ combat speed and flight speed (Is able to casually move faster than his visual effects, which can create sonic booms) | Peak Human travel speed (Superior to any normal human. Stats are able to increase agility to higher levels, however Kirito is a STR build, not an AGI build), Hypersonic+ combat speed (Was capable of swatting and deflecting bullets from an automatic rifle in GGO) | Peak Human with Superhuman reaction speed (Should not be any slower than his real life counterpart. Fought against multiple goblins and Lizard Killer Ugachi at once) | Superhuman (After leveling up significantly from the goblin battle, Kirito is able to compete with Integrity Knights) | Subsonic (Should be comparable to Alice) with Hypersonic flight speed | Supersonic (Comparable to Ronie, who block a tailwhip within a hundreth of a second) Hypersonic flight speed

Lifting Strength: Average Human | Possibly Class 5 (Should be comparable to his SAO feats by floors 30-40) | Peak Human (Superior to normal humans in the real world) | At least Average Human (Should at least be comparable to his real life counterpart. Can barely carry the Blue Rose Sword) | Superhuman (Lifted about 180 kg of straws with ease, threw a fully-armored Alice up 4 meters while she is carrying a sword as heavy as a boulder) | At least Superhuman (Should be superior than himself during the Human Realm Arc) | At least Superhuman

Striking Strength: Athlete level (Stabbed into Kanamoto Atsushi's thigh with a blunt umbrella) | At least Small Building level | Street level | Street level, higher with Sword Skills and Incarnation | Building level+ physically, Large Building level with Incarnation | At least Building level, City level with Incarnation and the Night Sky Sword's Release Recollection | City level with Incarnation and Release Recollection

Durability: Athlete level (Was thrown into a wall by Eiji but continued fighting like nothing happened) | At least Small Building level | Street level, Small Building level when deflecting with a Kagemitsu G4 | Street level, higher with Incarnation | Building level physically (Can take hits from Integrity Knights. Survived being slammed into a wall by Deusolbert's Enhance Armament and the Sword Golem, however both times he was out of commission temporarily, and in the latter fight he was going to bleed out if it wasn't for Cardinal saving him), higher with Sacred Arts (Can create barriers to stop attacks. Halted Desuolbert's Enhance Armament for a second) Multi-City Block level when blocking with the Night Sky Sword (Divine Objects can withstand their memory release forms, all of which are on this level. Stopped almost all of Deusolbert's Enhance Armament by using Spinning Shield, albeit it was a weaker version of it which wasn't meant to kill) | At least Building level physically, higher with Sacred Arts, Multi-City Block level when blocking, City level with Incarnation and the Night Sky Sword's Release Recollection (Can withstand Subtilizer's counterattack against him during Starburst Stream and Kirito's Incarnation barriers can easily deflect Subtilizer's attacks. However, a clean hit still got his arm got lobbed straight off.) | City level with Incarnation and Release Recollection (His Incarnation Barrier effortlessly dispersed the Abyssal Horror's attacks)

Stamina: Athletic (Continued to fight even after taking punishment from Eiji. Defeated bosses in Ordinal Scale non-stop and without breaks throughout multiple nights) | Infinite physically (Virtual Reality Avatars can never get physically tired; limited only to the mental power of the person themselves), Superhuman mentally (Slept for three hours everyday in SAO, and most of his day consisted completely of fighting monsters non-stop. Halted his own death temporarily through sheer willpower. Was stabbed through the chest and was able to feel pain, but still trudged through with sheer willpower) | Same as previous | Virtually Infinite physically (Just like normal Virtual Reality Avatars, however the difference being that if one ran out of "stamina", they would begin taking damage to their Life), vastly Superhuman mentally (Walked off having a chunk of his arm cut off, been pierced and cauterized by beams of light, and entire limbs coming off)

Range: Standard Melee Range unarmed in real life, Extended Melee Range with a sword in AR | Extended Melee Range with swords, Several Meters with dash-type Sword Skills (Does not have this pre-New Aincrad), Tens of Meters with Metamorphosis | Extended Melee Range with his photon saber, Several Meters with his Five-Seven | Extended Melee Range with swords, Several Meters with dash-type Sword Skills | Same as before, with the addition of Several Meters with Sacred Arts, Incarnation, and Enhance Armament | Same as before, with the addition of Kilometers (Via Blue Rose Sword's and Night Sky Sword's Release Recollection); can augment his range with Spatial Manipulation | Same as before

Standard Equipment:

The Augma: A device that allows the user to use Augmented Reality technology.

  • Unnamed Greatsword: A black two-handed greatsword used with one hand by Kirito, which was bought in the city of Swilvane. The sword was about at tall as Kirito himself, nearly touching the ground when sheathed. This weapon was eventually replaced by the Black Welt made by Lizbeth.
  • Unnamed Black Longsword: A black one-handed longsword made by Lizbeth using a rare metal from Jotunheimr. It resembles Dark Repulser by how it looks. Called Unity Vox in SAO: Lost Song.
  • Unnamed Blue Longsword: A blue one-handed longsword that was droped by New Aincrad 15th Floor Raid Boss. It was used as a secondary sword before obtaining Excalibur.
  • Holy Sword Excalibur: The most powerful sword in ALO, taken by Kirito after their party's completion of "The Holy Sword of the Ice Palace" quest. Excalibur is referred to as "The Sword which cuts through all steel and tree" by the NPC character Urðr. The author has stated that it provides a massive immense stat increase when equipped, but it is never used in the main story and thus its power remains unknown.
  • Black Welt: A black one-handed longsword made by Lizbeth after the Alicization arc.

  • Kagemitsu G4: A purple photon sword with a 1-meter long beam tube for a blade. It is extremely lethal in that it destroys bullets on impact, and presumably most metals as well. It is however stopped by extremely high durability metals like with Sterben's (Death Gun) Estoc made of starship metal. It is, however, currently in Sinon's possession.
  • FN Five-Seven: A semi-automatic handgun that acts as Kirito's secondary weapon in GGO. It is, as its name suggests, 5.7mm caliber and has 20 rounds per magazine.

  • Blue Rose Sword: The «Blue Rose Sword» (青薔薇あおばらの剣, Ao-bara no Ken) is a Priority Class 45 «Divine Object» class long sword found in the Mountain Range at the Edge. It is the personal weapon of Eugeo and was highly coveted by the knights in the Underworld. Its appearance is pure white, in contrast with Kirito's «Night Sky Sword», and is inscribed with a blue rose at the center of its guard. Its primary ability involves creating ice and blue roses that drain the opponent's life.
  • Night Sky Sword: The «Night Sky Sword» (夜空の剣, Yozora no Ken), often called "The Black One", is a Priority 46 Divine Object-class long sword that is Kirito's personal one-handed sword in Underworld. In terms of Priority Class, it out scales Eugeo's Blue Rose Sword. Its primary ability involves absorbing all of the energy it can, going all the way to entire stars. The user can expend this absorbed energy in any way they see fit, such as enhancing their attacks and abilities, increasing the weapon's size, or healing everyone within a large radius.

Intelligence: Gifted in combat (Though he is academically average, Kirito has a high combat intelligence and can adapt to battles and situations on the fly. He has over 2 years of battle experience fighting for his life against both predictable NPCs and unpredictable players alike, developing a fighting style that revolves around tricking his opponents into doing what he wants through mind games and feints, or searching for any openings or weaknesses of the opponent on the fly and adapting his strategy to counteract that. His knack for finding patterns and adapting to situations has also led to him to develop multiple Outside System Skills to help in various situations, as well as notice things that most people wouldn't. This fighting experience is only sharpened after learning formal Kendo swordplay from Suguha during Ordinal Scale and learning formal swordsmanship for over a year in the North Centoria Imperial Sword Mastery Academy during his time in the Underworld. Additionally, Kirito is very knowledgeable with computers and mathematics (e.g. he randomly computes the volume of the food he eats), and is extremely proficient in multitasking. He has an extremely good memory, as he remembers dozens upon dozens of Sword Skills and how to get into their pre-motions, nearly every single game mechanic within SAO and ALO, and piles of information on every single floor of Aincrad up to the 75th floor; using everything he has in his memory to his advantage in combat. Even beyond Aincrad, his memory and instincts from his time in the floating castle made him an astute observer, recognizing weak points in weapons and an opponent's body, as well as memorizing seemingly useless facts that he could use later, such as various metal types or what specific flowers grow in what area, showing his dedication to observation that could come in handy when facing an unorthodox opponent or a mystery that had to be solved)

At the end of Alicization, Kirito and Asuna are forced to remain in the Underworld for over 200 years, and in this time, Kirito has gained immense experience and knowledge in general, especially as an engineer, ruler, politician, and swordsman (Though this experience and knowledge is erased from EoA Kirito upon getting out of the Underworld). In his early days as ruler, he was able to reunite and reforge all of Caldina back to its former glory, reinstating planetary peace. After finishing up the last of his home planet, Kirito turned his attention to the vastness of Outer Space and developed interstellar-capable starships, colonized other planets, set up star ports, space stations, space military divisions, and an interstellar travel route, becoming the cosmic emperor of the (now interstellar) Human Empire, gaining the title "Star King".

Weaknesses:

  • Normally composed and calculated when fighting, but fights with reckless abandon when he gets emotional.
  • Sword Skills have a small post-motion stun at the end of them in exchange for increased power (Though Skill Connect negates this weakness).
  • Cannot fly in areas void of sunlight or moonlight (ALfheim Online Keys Only).
  • Most of the time, to activate Sacred Arts, the user must chant out the words required to activate it. Sacred Arts require "spatial resources" to use, meaning that barren environments would lessen the effects of a Sacred Art (Alicization Keys Only).
  • Using Enhance Armament or Release Recollection drains the weapon's Durability, which can only be restored when sheathed for long periods of time (Alicization Keys Only).
  • The Night Sky Sword's Release Recollection expends the resources it gathered whenever Kirito uses intensive abilities or Sword Skills, forcing him to recharge once all the resources are used (Alicization Keys Only).
  • Because of Incarnation's passive nature based on the imagination and willpower of the individual, at worst, if the user thinks a situation is hopeless or impossible to succeed, Incarnation will instead have a negative effect and make that situation true.

Notable Attacks/Techniques:

Incarnation: A secret skill passed down by Integrity Knights since ancient times, and one of the most important concepts in the Sword Art Online franchise. Incarnation refers to the ability to change the state of the world through pure willpower and imagination. For any other virtual reality world, it is a system glitch, usually activated in times of extreme emotion or during extreme brain activity, allowing closer access to one's Fluctlight, or soul, to temporarily change the world around them. For residents of the Underworld, it is a constant passive that dictates whether they succeed or fail in anything. The more confident one is in their abilities and the more of a positive reputation they have, the more the world shall bend in their favor. It is the power which Sacred Arts derive from. Its effects are versatile, as the power has been used to wield invisible blades, create swords from the user's blood, transmute objects, increase the chances of an event happening, and much more. However, the power of an Incarnation ability can be matched by another Incarnation ability, and the use of Incarnation is mentally exhausting, requiring a lot of concentration and energy to perform. If the user is in a state where their will is not strong enough, they become unable to use Incarnation. There are a limited amount of people who can use Incarnation to its full potential, and much practice and experience are needed to be able to use it. This ability is most prominent in the Underworld, as this ability is one of that world's core mechanics. However this ability has also been shown multiple times throughout the series before the Alicization arc.

Outside System Skills (OuSS): As its name suggests, are skills that are the users own, unlike Sword Skills and magic that are provided for by the game engine.

  • (OuSS) Switch: A technique where two Players switch positions in-between an enemy's attack to recover Hit Points, chain attacks together without worrying about a post-motion stun, and/or burden the learning abilities of enemies if they are AIs.
  • (OuSS) Mislead: After studying his foe's movement and response patterns and learning functions (such as that of an enemy AI's), Kirito moves outside of his foe's habitual predictions to throw them off.
  • (OuSS) Arms Blast: Destroys the opponent's weapon by hitting its weak point, showing knowledge of a weapon's weakness.
  • (OuSS) Spell Blast: Negates a projectile spell by slashing through its hitbox (its very center) with a Sword Skill. The notable Sword Skill he used to demonstrate this is Deadly Sins, a 7-hit Sword Skill. The conception of this OuSS is from Kirito cutting bullets in GGO.
  • (OuSS) Hypersense: The act of sensing hostile intention or killer intent, allowing the user to react against attacks and enemies outside of their field of vision.
  • (OuSS) Distinguish: Allows the user to eliminate background noise to focus on unnatural or certain sounds around him. Its range is unknown but it is notable in that this skill, along with Hypersense, allowed Kirito to react to a sniper bullet from a blind spot.
  • (OuSS) Skill Connect: A technique that allows the user to chain together Sword Skills without having to worry about a post-motion stun. The technique works by first activating and releasing a Sword Skill, while at the same time positioning themselves during said Sword Skill into a pre-motion of another Sword Skill to chain them together. It is extremely difficult to do as it requires split-second precision to prevent a Sword Skill's post-motion from affecting the user. It's easier to do with dual blades, since the user doesn't have to move as much to activate the pre-motion.
  • (OuSS) Bullet Deflect: As the name suggests, it allows the user to deflect bullets, showing the user's reaction time.
  • (OuSS) Sword Skill Imitation: Imitating the user of Sword Skills without the system's assistance, removing the post-motion stun, but sacrificing the power and speed of the actual skill.

Sword Skills (SS): A series of movements that allows the user to attack much faster than they normally could, but the movements required to perform the Sword Skill are fixed and cannot be canceled by the user after they begin performing it. Contrary to their name, Sword Skills do not have to be used with a sword. Also note that these may not be all of Kirito's Sword Skills, but simply most of the ones he has been shown to use. Cannot be used in ALfheim Online pre-New Aincrad and in Gun Gale Online (Can only use imitations).

  • (SS) Embracer: An unarmed skill that is strong enough to punch through a chest plate with the user's hand, fingers straightened.
  • (SS) Senda: An unarmed skill that sends a mighty uppercut towards the enemy.
  • (SS) Gengetsu: An unarmed skill that makes the user do a backflip and kick.
  • (SS) Haganeri: A defense skill that increases the player's Defense for a single second to such an extent that their entire body becomes harder than a set of full plate armor. Activation requires the player to be unarmed and only wearing non-metallic armor.
  • (SS) Escape: As the name suggests, it allows the user to escape from battle using martial arts.
  • (SS) Meteor Fall: A 2-hit Sword Skill that throws the user's sword up into the air, punches the enemy while it's in the air, then catch the sword to slash the enemy.
  • (SS) Meteor Break - A 7-hit Sword Skill that combines one-hand sword attacks with unarmed combat moves.
  • (SS) Cross Block: Brings two weapons together into a cross to block an attack.
  • (SS) Horizontal: Slashes horizontally.
  • (SS) Slant: Slashes diagonally.
  • (SS) Vertical: Slashes vertically.
  • (SS) Cyclone: Spins and attacks the enemy.
  • (SS) Sonic Leap: A Sword Skill that makes the user charge at the target at high speeds. It can be aimed at the sky as a jumping attack.
  • (SS) Rage Spike: A Sword Skill that makes the user charge at the target at high speeds. It has longer reach than Sonic Leap, however it cannot be aimed towards the sky.
  • (SS) Vorpal Strike: A Sword Skill Kirito most commonly uses and is what he considers the mark of the Black Swordsman. It is a high-speed thrusting attack done with one-hand swords and makes a jet engine-like noise when used, so it is not a very subtle attack. It has a notably longer post-motion than other Sword Skills.
  • (SS) Spinning Shield: A defensive Sword Skill. The skill is able to block regular attacks, however powerful skills still cause minor damage, as it is impossible to completely block such an attack with the skill. Additionally, the skill is capable of blocking flame and ice breaths, but is ineffective against lightning and poison.
  • (SS) Horizontal Arc: Slashes horizontally twice.
  • (SS) Vertical Arc: Slashes vertically twice.
  • (SS) Double Circular: Slashes twice with the user's dual blades.
  • (SS) Sharp Nail: Slashes 3 times at the enemy.
  • (SS) Vertical Square: A 4-hit Sword Skill that slashes four times vertically. After the skill is finished, a square, drawn with the four hits of this skill, continues to spin as it dissipates.
  • (SS) Horizontal Square: A 4-hit Sword Skill that slashes four times horizontally. After the skill is finished, a square, drawn with the four hits of this skill, continues to spin as it dissipates.
  • (SS) Nova Ascension: The strongest one-handed Sword Skill. A 10-hit Sword Skill that is faster and stronger than any other previous one-handed Sword Skill.
  • (SS) Starburst Stream: A devastating 16-hit Sword Skill that is extremely fast and is powerful enough to force the Gleam Eyes to try and catch it to stop the skill.
  • (SS) The Eclipse: The strongest Dual Blades Sword Skill. It is a quick, 27-hit Sword Skill that is stronger in power than Starburst Stream. The entirety of the Sword Skill was used in Kirito's final fight with Heathcliff in SAO (but only a part of it was used in the anime).

Original Sword Skills:

Original Sword Skills (OSS): Sword Skills made by or is inherited by the user from another. It is done by recording the creator's movements while the skill is being done. It is very difficult as it requires the user to do it perfectly as speeds above how they normally do, at speeds of that of Sword Skills. Cannot be used in Sword Art Online and in Gun Gale Online (The latter can only use imitations).

  • (OSS) Howling Octave: A combination Sword Skill that does 5 high-speed thrusts followed by 2 vertical slashes, for a total of 7-hits. Fire Element.
    • The final move of this skill leaves the user in a rigid position (post-motion) that is similar to the initial motion of the OSS Savage Fulcrum with the other hand, therefore, if the player has two swords and can think about different things with the left and right side of the brain, it is possible to chain in the skill before the delay of Howling Octave is over, nullifying the post-motion.
  • (OSS) Savage Fulcrum: A 3-hit Sword Skill that produces ice shards from the point of impact of the initial stab and the finishing upward slash. Ice Element.
  • (OSS) Lightning Fall: A 1-hit dual-wield OSS that produces an area-of-effect lightning attack centered at the two swords stabbed at the ground. It is one of the few ranged attack Sword Skills. Lightning Element.

Magic: Allows the user to use race-unique and ALfheim standard magic. Kirito, as a Spriggan is naturally inclined towards illusion-based magic but he also uses standard elemental magic to imbue his swords with it. ALfheim Online (ALO) Kirito only.

  • Spriggan Illusion Magic - Smokescreen: An unnamed magic that produces an enormous black smoke cloud centered around Kirito. Kirito, a spriggan is naturally immune to it and therefore can see through the smoke.
  • Spriggan Illusion Magic - Metamorphosis: A magic that sucks up all of Kirito's remaining mana to transform him into a Gleam Eyes-esque beast but is built for speed instead of the Gleam Eyes' bulky strength build. This only increases his attack range due to the beast form's arm length, but it does not increase his stats in any way as it is only an illusion.
  • Wall Run: As one of the lightweight races, the Spriggans are capable of using the skill Wall Run, that, as the name suggests, allows them to temporarily run on walls. The normal limit is a distance of ten meters, but those with an extremely high sprinting speed are known to be able to run for about thirty meters.
  • Night Vision: Spriggans are known to have night vision, allowing them to be able to see in near total darkness. They are also capable of casting a buff that gives others the same abilities.
  • Treasure Hunting Magic: Though capable of using other types of magic, Spriggans are known to be the masters of Treasure Hunting Magic, a magic that assists them in treasure hunting.

Sacred Arts: «Sacred Arts» are System Commands in Project Alicization that residents of Underworld believe to be magic rituals. In reality, they are just words used to arrange thoughts and guide the emotions of the caster to make use of one's imagination power. Because of this, the imagination of the user may either improve or decrease the effectiveness of an art.

  • Perfect Weapon Control Art: The Perfect Weapon Control Art is a high-ranking Sacred Arts ritual that is used to boost the offensive power of a Divine Object-class weapon by linking with the true essence of the weapon. As all Divine Object-class weapons strongly inherit the properties of the object that served as its nucleus in the form of memories, the Perfect Weapon Control Art may be used to tap into the parameters inherited from the base material, thus increasing the power of the weapon in the form of special abilities. The ability acquired through the ritual depends solely on how the caster pictures the released form of the weapon. The first phase of the «Perfect Weapon Control Art», called the «strengthening» phase, is the partial awakening of the weapon's memories, which manifest as a new offensive ability for the weapon. The «Life» of the weapon decreases greatly every time the command is used and the power of the ritual is determined by the caster's ability to imagine the released form of the weapon. The second phase of the ritual, called the «releasing» phase, is a command that releases all of the memories of the weapon, unleashing all of its rampant power. Memories unleashed with this phase become uncontrollable to the caster and might even engulf the caster himself. For example, the «Perfect Weapon Control» art with the Blue Rose Sword is as follows:
    • Once the «Perfect Weapon Control» art is in effect, the Blue Rose Sword is capable of covering a large area in ice. Everyone within the area is then entangled in fast growing pinky-thick thorny ice tendrils, which quickly freeze their targets in blocks of ice. If the wielder then shouts the command "Bloom Blue Rose", an infinite number of large profound blue roses grow and leech the «Life» of the victims encased within the ice and turns it into Sacred Power, which is released into the area for use. According to Eugeo, these abilities are not meant to kill, but rather to trap one's opponent. The degree of power of these abilities also varies depending on which armament state the user has initiated. In the first, «enhancing», stage the sword can cover an area of ten meters in frost, where the ice tendrils then ensnare and freeze opponents, and can produce ice roses that drain «Life» at a gradual rate. Upon entering its second, «releasing», stage, the sword sends out a rapidly expanding bluish white circle, which instantaneously freezes the surrounding area. In this state, both the freezing and «Life» drain abilities are greatly amplified, to the point where boiling hot water can easily be frozen solid, and the roses produced are actual blue roses, as opposed to the first stage's ice ones, which sap «Life» at a greater rate. However, maintaining these abilities requires great mental focus from the sword's user and, as with all «Perfect Weapon Control» arts, it uses some of the sword's «Life».

Note: Star King Kirito and End of Alicization (EoA)/Current Kirito are completely different people living completely different lives.

Others

Notable Victories:

LLENN (Sword Art Online) LLENN's Profile (GGO Kirito was used)

Homelander (The Boys) Homelander's Profile (Post-Goblin Fight/Human Realm Kirito was used against Comic Homelander, 8-B Incarnations, Speed was Equalized)

Notable Losses:

Inconclusive Matches:

Hawke (Dragon Age) Hawke's Profile (War of Underworld Kirito was used. Speed was equalized)

Discussions

Discussion threads involving Kirito (Post-Aincrad)
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