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Sword Art Online
2012 - 2020 8.2 (1951 votes) 4 Seasons
Official Website
Genres
Animation Sci-Fi & Fantasy Action & Adventure
Networks
Gunma TV
Tokyo MX
tvk
BS11
Tochigi TV

Sword Art Online (ソードアート・オンライン)

Blurring the line between the virtual and the real.

Overview

In the near future, a Virtual Reality Massive Multiplayer Online Role-Playing Game (VRMMORPG) called Sword Art Online has been released where players control their avatars with their bodies using a piece of technology called Nerve Gear. One day, players discover they cannot log out, as the game creator is holding them captive unless they reach the 100th floor of the game's tower and defeat the final boss. However, if they die in the game, they die in real life. Their struggle for survival starts now...

Key Crew

Top Cast

Seasons

Season 0 poster
Season 0 (2012)

No overview available.

25 episodes

Episodes
Episode 1: Sword Art Offline 1
2012-10-24

A mock talk show anchored by Kirito and Asuna featuring some highlights of episodes 1 and 2 and having Klein as a special guest, with life counsel section held by Kirito and trivia sections held by Yui.

Runtime: 12 min
Episode 2: Sword Art Offline 2
2012-12-03

The talk show continues, with Klein replaced Kirito as life counsel host, featuring highlights of episodes 3, 4, and 5 with Silica as the special guest.

Runtime: 12 min
Episode 3: Sword Art Offline 3
2012-12-26

This edition feature the highlights of episodes 6, 7, and 8 with Lisbeth as the special guest.

Runtime: 12 min
Episode 4: Sword Art Offline 4
2013-01-23

This edition highlights episode 9, 10, and 11 with Yui as the special guest. Heathcliff substitutes Yui as trivia guide in this episode.

Runtime: 12 min
Episode 5: Sword Art Offline 5
2013-02-27

This edition highlights episode 12, 13, and 14 with Heathcliff as the special guest.

Runtime: 12 min
Episode 6: Sword Art Offline 6
2013-03-27

The show received major overhaul due to ALO arc, with Leafa replaced Asuna as main anchor, and a new section "Slot Talk" replacing Klein's Life Counsel. There was no guest for this episode and it highlighted episode 15 and 16.

Runtime: 12 min
Episode 7: Sword Art Offline 7
2013-04-24

This edition highlights 17, 18, and 19 with Yui once again the special guest. Oberon substituted Yui as trivia guide in this episode.

Runtime: 12 min
Episode 8: Sword Art Offline 8
2013-05-22

This edition highlights 20, 21, and 22 with Sakuya and Alicia murdering Kirito. In addition, Kirito was locked in a coffin by Alica at the end of this episode.

Runtime: 12 min
Episode 9: Sword Art Offline 9
2013-06-26

This edition highlights 23, 24, and 25.

Runtime: 12 min
Episode 10: Sword Art Online: Extra Edition
2013-12-31

Kirito and the others decide to go on an underwater quest to allow Yui to see a whale, but face a shocking revelation… Suguha is afraid of water. So, Asuna and the other girls decide to teach Suguha how to swim. Meanwhile, Kirito is meeting somebody.

Runtime: 101 min
Episode 11: Sword Art Offline: Extra Edition
2014-04-23

Blu-ray/DVD extra with Suguha, Asuna and Kirito commenting on Sword Art Online: Extra Edition. Also stars Yui.

Runtime: 13 min
Episode 12: Debriefing
2014-10-11

Recap episode of Episodes 1-14 (Phantom Bullet arc) of Season 2, also known as Episode 14.5. Narrated by Sinon.

Runtime: 24 min
Episode 13: Sword Art Offline II 1
2014-10-22

This edition highlights 1, 2, and 3.

Runtime: 12 min
Episode 14: Sword Art Offline II 2
2014-11-26

This edition highlights 4, 5, and 6.

Runtime: 12 min
Episode 15: Sword Art Offline II 3
2014-12-24

This edition highlights 7, 8, and 9.

Runtime: 12 min
Episode 16: Sword Art Offline II 4
2015-01-28

This edition highlights 10, 11, and 12.

Runtime: 12 min
Episode 17: Sword Art Offline II 5
2015-02-25

This edition highlights 13 and 14.

Runtime: 12 min
Episode 18: Sword Art Offline II 6
2015-03-25

This edition highlights 15, 16, and 17.

Runtime: 12 min
Episode 19: Sword Art Offline II 7
2015-04-22

This edition highlights 18, 19, and 20.

Runtime: 12 min
Episode 20: Sword Art Offline II 8
2015-05-27

This edition highlights 21 and 22.

Runtime: 12 min
Episode 21: Sword Art Offline II 9
2015-06-24

This edition highlights 23 and 24.

Runtime: 12 min
Episode 22: Sword Art Online Movie: Ordinal Scale - Sword Art Offline
2017-09-27

Runtime: 14 min
Episode 23: Alicization 18.5: Recollection
2019-02-17

Recap of the first 18 episodes of Alicization.

Runtime: 24 min
Episode 24: Alicization 24.5: Reflection
2019-10-06

Recap of Sword Art Online: Alicization, aired one week before Sword Art Online: Alicization - War of Underworld.

Runtime: 24 min
Episode 25: Alicization - War of Underworld 12.5: Reminiscence
2020-07-05

This episode is a recap of Sword Art Online: Alicization - War of Underworld.

Runtime: 24 min
Season 1 poster
Season 1 (2012)

In the year 2022, a massive online role-playing game called Sword Art Online (SAO) is launched. With the aid of "NerveGear" technology, players can control their avatars within the game using nothing but their own thoughts. Kazuto Kirigaya is among the lucky few who get their hands on the first shipment. He logs in to find himself, with ten-thousand others, in the scenic and elaborate world of Aincrad. However, in a cruel turn of events, the players soon realize they cannot log out; the game's creator has trapped them in his new world until they complete all one hundred levels of the game. In order to escape Aincrad, Kirito will now have to interact and cooperate with his fellow players. Some are allies, while others are foes. Sword Art Online is not all fun and games: if they die in Aincrad, they die in real life. Kirito must adapt to his new reality, fight for his survival, and hopefully break free from his virtual hell.

25 episodes

Episodes
Episode 1: The World of Swords
2012-07-08

It's launch day for one of the most highly-anticipated video games of all time. Join the character "Kirito" as he begins his journey in the virtual world of Sword Art Online.

Runtime: 24 min
Episode 2: Beater
2012-07-15

It’s been one month since the players have been locked in the game. 2000 people have died; the first floor hasn’t been cleared yet.

Runtime: 24 min
Episode 3: The Red-Nosed Reindeer
2012-07-22

Kirito has finally joined a guild made up of close friends in reality. Everything is going well until a tragic accident changes Kirito completely.

Runtime: 24 min
Episode 4: The Black Swordsman
2012-07-29

Silca is known as Dragon Tamer Silca, but after leaving her group she is caught and her pet, Pina paid the ultimate price. Before she is killed, Kirito saves her and offers her a choice.

Runtime: 24 min
Episode 5: Murder in the Safe Zone
2012-08-05

A player has been killed inside a safe zone and not by the known means. Asuna and Krito take it upon themselves to find out how and why this is happening.

Runtime: 24 min
Episode 6: Illusionary Avenger
2012-08-12

Kirito has figured out the how and now he has to figure out the why.

Runtime: 24 min
Episode 7: The Temperature of the Heart
2012-08-19

A trip to get a new sword leaves Kirito battling a dragon and his fears.

Runtime: 24 min
Episode 8: The Sword Dance of Black and White
2012-08-26

After 2 years, people have got used to living in SAO, with a dwindling front line it might just be up to Kirito and Asuna to continue the charge.

Runtime: 24 min
Episode 9: The Blue-Eyed Demon
2012-09-02

To save a group of players and Asuna from a Boss character, Kirito is forced to play his trump card.

Runtime: 24 min
Episode 10: Crimson Killing Intent
2012-09-09

Kirito has agreed to a duel with the head of the Blood Alliance Knights. If Kirito wins, Asuna is free to leave the Knights and if he loses…

Runtime: 24 min
Episode 11: The Girl of Morning Dew
2012-09-16

The newly married couple is enjoying their time away from the front lines. But a new guest will take them all the way back to the beginning.

Runtime: 24 min
Episode 12: Yui's Heart
2012-09-23

Yulier, second in command, of the Liberation Army has approached Kirito and Asuna for help saving her friend and her guild.

Runtime: 24 min
Episode 13: Edge of Hell's Abyss
2012-09-30

While enjoying a fishing tournment Kirito receieves an urgent e-mail from the leader of the guild requesting their return.

Runtime: 24 min
Episode 14: The End of the World
2012-10-07

Game over.

Runtime: 24 min
Episode 15: Return
2012-10-14

Kirigaya is adjusting to his life outside of the game, but he hasn't forgotten about Asuna. A recent visit to her in the hospital, he meets Sugou Nobuyuki.

Runtime: 24 min
Episode 16: Land of the Fairies
2012-10-21

A new MMO allows users to fly and encourages player killing. Kirito has joined this new game in search of Asuna and is pleasantly surprised with what he finds.

Runtime: 24 min
Episode 17: Captive Queen
2012-10-28

As Kirito learns about the game from Leafa and the hatred between the races, Asuna learns the truth of her role from the Fairy King.

Runtime: 24 min
Episode 18: To the World Tree
2012-11-04

Leafa is making enemies leaving her area and group to team up with Kirito. On their way to neutral Territory, they speak more of the rules and areas of the ALO.

Runtime: 24 min
Episode 19: The Lugru Corridor
2012-11-11

Something isn’t right; Recon has sent Leafa a message “I was right. Be careful. S." What does he mean and will Leafa and Kirito have the time to figure it out?

Runtime: 24 min
Episode 20: General of the Blazing Flame
2012-11-18

Kirito and Leafa have made it to the meeting and Kirito’s bluff as an ambassador has been called out. If he can survive in a fight against the Salamanders General Eugene, his plan to prevent a war might work.

Runtime: 24 min
Episode 21: The Truth about Alfheim
2012-11-25

While Asuna continues her attempt to escape, another woman in Kirito’s life tries to make sense of her emotions.

Runtime: 24 min
Episode 22: Grand Quest
2012-12-02

Kirito’s determination to save Asuna borders on the insane. His reckless is stopped when Leafa suddenly logs out.

Runtime: 24 min
Episode 23: Bonds
2012-12-09

Even though a wall has been built between Kirito and Sugu, he must save Asuna. The next time he challenges the final dungeon he won’t be alone.

Runtime: 24 min
Episode 24: Gilded Hero
2012-12-16

Kirito, Asuna, and Yui are finally together again, but the locks placed on Asuna are unbreakable. Before they have a chance to come up with a plan, the fairy king makes his grand entrance.

Runtime: 24 min
Episode 25: The World Seed
2012-12-23

Kirigaya Kazuto has beaten death twice but there is one more thing he must do.

Runtime: 25 min
Season 2 poster
Season 2 (2014)

A year after escaping Sword Art Online, Kazuto Kirigaya has been settling back into the real world. However, his peace is short-lived as a new incident occurs in a game called Gun Gale Online, where a player by the name of Death Gun appears to be killing people in the real world by shooting them in-game. Approached by officials to assist in investigating the murders, Kazuto assumes his persona of Kirito once again and logs into Gun Gale Online, intent on stopping the killer.

24 episodes

Episodes
Episode 1: The World of Guns
2014-07-05

A year has passed since SAO was cleared. Summoned by Kikuoka of the Virtual Division at the Ministry of Internal Affairs and Communications, Kazuto learns of a series of bizarre murders linked to the popular VR game, Gun Gale Online (GGO), the only game in Japan played by pros.

Runtime: 24 min
Episode 2: Cold-Hearted Sniper
2014-07-12

Armed with a large sniper rifle, Hecate II, the young girl Sinon is making a name for herself as the No. 1 sniper in GGO. When her squadron ambushes another squadron, she succeeds in taking out her first target. But when she takes aim at her second target, a robed “Behemoth,” he dodges the bullet.

Runtime: 24 min
Episode 3: Memories of Blood
2014-07-19

In real life, the player Sinon is a high school student named Shino Asada. On her way home from school, she’s dragged into an alley by delinquent girls. Their leader, Endo, tries to extort money from Shino, but she bravely refuses.

Runtime: 24 min
Episode 4: GGO (Gun Gale Online)
2014-07-26

Kikuoka has recruited Kirito to investigate GGO, and so he logs in. To lure Death Gun into targeting him, he hopes to enter Bullet of Bullets (BoB), a tournament to decide the most powerful gunman in GGO. But as a first-timer, he doesn't know his way around this game, and soon loses his way, when he catches sight of Sinon and approaches her.

Runtime: 24 min
Episode 5: Guns and Swords
2014-08-02

To register for BoB, Kirito starts entering the required information into a terminal, but is astounded to see that the form includes columns for his real-world name and address. He is temporarily torn when he realizes that without this info, he won't be eligible for the top prizes...

Runtime: 24 min
Episode 6: Showdown in the Wilderness
2014-08-09

A man in a beat-up cloak watches Kirito fight his first battle and demands to know if he's "the real thing". The man has the tattoo of Laughing Coffin, a murderer's guild that existed within SAO. He tells Kirito that he'll kill him someday, and vanishes.

Runtime: 24 min
Episode 7: Crimson Memories
2014-08-16

The man in the ragged cloak is an SAO survivor, and he might also be a player Kirito fought with to the death... This thought consumes Kirito, and his anguish is palpable - to the point that it worries Suguha.

Runtime: 24 min
Episode 8: Bullet of Bullets
2014-08-23

Kirito decides that Death Gun and the man in the cape will be appearing in BoB. He uses the remaining time to exchange information with Sinon and find out more about the contestants. Sinon sees how strange he was acting during the qualifier and asks him what happened. She learns that he is a SAO survivor. The main BoB tournament begins and 30 players are dropped in a 10km wide field.

Runtime: 24 min
Episode 9: Death Gun
2014-08-30

The man in the cape shoots Pale Rider and he is eliminated despite the fact that he has HP remaining. The man says that he is Death Gun, and declares that he will bring true death. Asuna and her friends are watching a live stream of BoB and realize that Death Gun is one of the leaders of Laughing Coffin.

Runtime: 24 min
Episode 10: Death Chaser
2014-09-06

Sinon is attacked from behind by Death Gun and paralyzed. He's using a Black Star Type-54, ironically the same gun that Sinon used to shoot the robber. Her memories of the incident come flooding back and Sinon loses control, and Death Gun tries to kill her to make Kirito angry. But just before he can kill her Kirito saves her at the last second. Sinon is out of the fight, and Kirito tries to flee with her but is pursued by Death Gun.

Runtime: 24 min
Episode 11: What It Means To Be Strong
2014-09-13

After escaping from Death Gun, Kirito and Sinon lay low in a desert cave. There, Kirito speculates on how Death Gun murdered other players. In doing so, he hits upon a certain terrifying possibility.

Runtime: 24 min
Episode 12: Bullet of a Phantom
2014-09-20

BoB nears its end, and the only surviving players are Kirito, Sinon, and Dark Wind, the second place winner of the last tournament. Since Death Gun may have multiple partners, and Dark Wind may be in danger as well, Kirito decides to defeat him first. He acts as a decoy while Sinon snipes the enemy. Kirito's trust in her pays off as her bullet strikes true, and he finally faces off with Death Gun.

Runtime: 24 min
Episode 13: Phantom Bullet
2014-09-27

Death Gun's attack is modeled after Star Splash, a SAO skill that doesn't exist in GGO. Death Gun is skilled with not only a gun but a blade as well, and he gradually wears down Kirito's health. Meanwhile, Sinon's scope has been destroyed by Death Gun and she cannot attack, so she's forced to simply watch the fight. She grits her teeth and wonders if there's anything else she can do.

Runtime: 24 min
Episode 14: One Little Step
2014-10-04

Kyouji attacks Shino, saying he'll kill himself after she's dead. Kazuto saves her at the last second by jumping Kyouji. During the fight, Kazuto is hit with Kyouji's poison syringe, but miraculously it doesn't work and Kirito is saved. The next day Kazuto and Shino go to meet Kikuoka, and discuss the incident. Kikuoka has a message from one of the captured Death Guns...

Runtime: 24 min
Episode 15: The Queen of the Lake
2014-10-18

It's reported that the Holy Sword Excalibur has been discovered inside ALO. Hearing the news, Kirito and Leafa decide to take possession of Excalibur before other players get to it first.

Runtime: 24 min
Episode 16: The King of the Giants
2014-10-25

Kirito and the others are tasked with subjugating the Frost King Thrymr, and a quest to recover Excalibur. It's Yui's guess that this isn't a quest planned by the game admins, but something automatically generated by the system. And if that's the case…

Runtime: 24 min
Episode 17: Excalibur
2014-11-01

Kirito and the others are taking on Thrymr, the Boss lurking at the bottom level of the dungeon. But unable to make much of a dent in Thrymr's HP, they soon find themselves in grave danger. Just then, their new ally, Freyja, raises her voice…

Runtime: 24 min
Episode 18: Forest House
2014-11-08

In an upcoming update of ALO, Floors 21-30 of New Aincrad will be unlocked. Asuna, Kirito and Yui revisit their dream of once again living together in their log cabin on Floor 22.

Runtime: 24 min
Episode 19: Zekken
2014-11-15

Hearing rumors about a brilliant player known as Zekken, Asuna decides to mount a challenge. But when Asuna logs out, she is told by her mother to take an exam to transfer into an academically oriented high school.

Runtime: 24 min
Episode 20: The Sleeping Knights
2014-11-22

Asuna is asked to help the guild “Sleeping Knights,” which has decided to disband soon due to the members’ circumstances. Before they do, they want to defeat a Floor Boss with only their party.

Runtime: 24 min
Episode 21: The Monument of Swordsmen
2014-11-29

Asuna and the Sleeping Knights’ attempt to defeat the boss on Floor 27 has been observed by a guild specializing in boss raids. Now 20 of its members block the boss room. With Kirito stalling the rest of the guild, can Asuna and the others break through?

Runtime: 24 min
Episode 22: The End of the Journey
2014-12-06

A few days have passed since Yuuki suddenly disappeared from in front of Asuna, and she still hasn’t logged in to ALO. Later, Asuna meets Kazuto on the school roof, where he hands her a note and tells her Yuuki might be at the location written on it.

Runtime: 24 min
Episode 23: The Dream Begins
2014-12-13

As a tester for the world’s first medical-use Full-Dive device, Yuuki has been diving into virtual worlds from the hospital. Unable to leave her hospital room, she longs to go to school again. To make that wish come true, Asuna asks Kazuto for help…

Runtime: 24 min
Episode 24: Mother's Rosario
2014-12-20

Getting to experience the outside world, Yuuki’s days are more satisfactory than ever before. In ALO, the players have a barbecue and end up on a quest. In the real world, Asuna and the girls take a trip to Kyoto. One day, Asuna receives an email…

Runtime: 24 min
Season 3 poster
Season 3 (2018)

The Soul Translator is a interface which interacts with the user's Fluctlight—the technological equivalent of a human soul—and fundamentally differs from the orthodox method of sending signals to the brain. The private institute Rath aims to perfect their creation by enlisting the aid of Kazuto Kirigaya. He works there as a part-time employee to test the system's capabilities in realm generated by the Soul Translator. As per the confidentiality contract, any memories created by the machine in the virtual world are wiped upon returning to the real world. Kazuto can only vaguely recall a single name, Alice, which provokes a sense of unease. When Kazuto escorts Asuna Yuuki home one evening, they chance upon a familiar foe. Kazuto is mortally wounded in the ensuing fight and loses consciousness. When he comes to, he discovers that he has made a full-dive into the Underworld with seemingly no way to escape. He sets off on a quest, seeking a way back to the physical world once again.

24 episodes

Episodes
Episode 1: Underworld
2018-10-07

Kirito, along with his childhood friend, Eugeo, has been tasked with cutting down a colossal tree called the Gigas Cedar. They’re swinging their ax when their friend Alice arrives with lunch. As they eat, the three friends decide to go to a fabled cave.

Runtime: 48 min
Episode 2: The Demon Tree
2018-10-14

Kirito wakes up to find himself inside a mysterious world evoking a fantasy game. His memory fuzzy, he tries to log out, but is unable to return to the real world. After wandering aimlessly, he finds himself underneath a colossal tree.

Runtime: 24 min
Episode 3: The End Mountains
2018-10-21

Kirito makes up his mind to journey to Centoria. Since he'll need Eugeo's help, he also decides to fell the Gigas Cedar. Meanwhile, Alice's little sister, Selka is worried about Eugeo, and opens up to Kirito about her concerns.

Runtime: 24 min
Episode 4: Departure
2018-10-28

Kirito and Eugeo realize Selka has taken off to the End Mountains alone, and decide to chase after her. As they enter the cave, they encounter goblins, presumably from the Dark Territory, and must engage in a battle.

Runtime: 24 min
Episode 5: Ocean Turtle
2018-11-04

In the real world, Kazuto Kirigaya lies unconscious. At Kikuoka’s request, Kazuto is moved to a well-equipped hospital, but when Asuna and Suguha try to visit, they’re turned away. Suspicious, Asuna and the others split up to find out more about Rath.

Runtime: 24 min
Episode 6: Project Alicization
2018-11-11

Asuna infiltrates Rath, the research lab in the Ocean Turtle, where she relentlessly grills Kikuoka about Kazuto's whereabouts. Kikuoka reveals that behind the development of the Soul Translator is a mind-blowing objective of epic scale.

Runtime: 24 min
Episode 7: Swordcraft Academy
2018-11-18

Two years have gone by since Kirito and Eugeo left Rulid Village. In the capital city, Centoria, both boys have attained their goal of being admitted to the North Centoria Imperial Swordcraft Academy.

Runtime: 24 min
Episode 8: Swordsman's Pride
2018-11-25

Kirito finds himself in a duel against the Elite Disciple Volo Levantein, using real swords. As the curious crowd looks on, Kirito is encouraged by Sortiliena, and the duel begins.

Runtime: 24 min
Episode 9: Nobleman's Responsibilities
2018-12-02

Now an Elite Disciple along with Kirito, Eugeo struggles with the question of what he should infuse in his sword so he can become stronger. When he's taunted by First-Seat Elite Disciple Raios and Second-Seat Humbert, Eugeo decides to accept Humbert's request for a duel.

Runtime: 24 min
Episode 10: Taboo Index
2018-12-09

Ronie and Tiese are late getting to the dorm. Kirito rushes out in search of them, but no sooner has he gone than Frenica appears. She tells Eugeo about how she's suffered at Humbert's hands, and that Tiese and Ronie went to confront him about it.

Runtime: 24 min
Episode 11: Central Cathedral
2018-12-16

Kirito and Eugeo are now considered criminals for having violated the Taboo Index and are thrown into the underground prison in the Central Cathedral. Meanwhile, on the Ocean Turtle in the real world, Asuna is watching over Kazuto as he's being treated.

Runtime: 24 min
Episode 12: The Sage of the Library
2018-12-23

Kirito and Eugeo escape from their cell, only to find their way blocked by Eldrie Synthesis Thirty-One, under orders from Alice to lie in wait for them. Kirito and Eugeo struggle against him until Eugeo realizes that he's seen Eldrie somewhere before.

Runtime: 24 min
Episode 13: Ruler and Mediator
2019-01-06

Kirito and Eugeo have been rescued by the young girl, Cardinal, who has secluded herself inside the Central Cathedral’s Great Library. Cardinal explains to Kirito how the Axiom Church and the Taboo Index came to be, starting with Administrator’s past.

Runtime: 24 min
Episode 14: The Crimson Knight
2019-01-13

After being entrusted with the fate of the world by the Cardinal, Kirito and Eugeo head to the top floor of the Central Cathedral. On the way, they find their confiscated swords among a vast pile of weapons in an arsenal, only to be greeted with a hail of arrows by the Integrity Knight, Deusolbert Synthesis Seven.

Runtime: 24 min
Episode 15: The Relentless Knight
2019-01-20

Kirito and Eugeo are on their way up the stairs of the Central Cathedral when they encounter two girls named Linel and Fizel. As they stand, wondering what two children are doing there, they let their guard down and...

Runtime: 24 min
Episode 16: The Osmanthus Knight
2019-01-27

Though riddled with wounds, Kirito manages to activate his Perfect Weapon Control art. Continuing on their way to the top floor of the Central Cathedral, Kirito and Eugeo find themselves standing before a strange-looking floating platform.

Runtime: 24 min
Episode 17: Truce
2019-02-03

When Kirito and Alice both unleash the Perfect Weapon Control art in the Cloudtop Garden, the impact rips a hole into the seemingly impregnable Central Cathedral wall, which sends them both flying outside.

Runtime: 24 min
Episode 18: The Legendary Hero
2019-02-10

Eugeo reaches the ninetieth floor of the Central Cathedral, which turns out to be a vast bathing area. The perplexed Eugeo encounters Bercouli Synthesis One soaking in the bath. Meanwhile, Kirito and Alice are still climbing the Central Cathedral wall.

Runtime: 24 min
Episode 19: The Seal of the Right Eye
2019-02-24

Seeing Alice’s reaction when he mentioned the name Selka, Kirito decides to tell her the truth about the Integrity Knights. Meanwhile, after being knocked unconscious during his battle with Bercouli, Eugeo awakes on the top floor of the cathedral.

Runtime: 24 min
Episode 20: Synthesis
2019-03-03

Kirito and Alice reach the communal bath on the nintieth floor. There, they find the Integrity Knight Commander, Bercouli, who's been turned to stone by Chudelkin. Alice breaks down in tears upon seeing her mentor's tragic plight, but then...

Runtime: 24 min
Episode 21: The 32nd Knight
2019-03-10

Standing in Kirito and Alice's way is Eugeo, who's undergone the Synthesis Ritual and become an Integrity Knight. Kirito is rattled, until Alice admonishes him into resolving to fight Eugeo with everything he's got.

Runtime: 24 min
Episode 22: Titan of the Sword
2019-03-17

On the top floor of the Central Cathedral, Kirito, Eugeo, and Alice finally face Administrator. But Chudelkin uses the sacred arts to transform himself into a giant clown and attacks.

Runtime: 24 min
Episode 23: Administrator
2019-03-24

Cardinal appears on the top floor of Central Cathedral for a showdown with her bitter foe of the last two hundred years. She moves to achieve her objective of deleting Administrator, only to see the fallen sword golem rise up again.

Runtime: 24 min
Episode 24: My Hero
2019-03-31

Carrying the hopes of Cardinal, Eugeo, and Alice in his heart, Kirito stands yet again and visualizes the Black Swordsman, the top player who cleared SAO. For the sake of everyone he’s encountered in this world, Kirito, faces off with Administrator.

Runtime: 24 min
Season 4 poster
Season 4 (2019)

Despite the defeat of Quinella—the pontifex of the Axiom Church—things have not seemed to calm down yet. Upon contacting the real world, Kazuto "Kirito" Kirigaya finds out that the Ocean Turtle—a mega-float controlled by Rath—was raided. Due to a sudden short-circuit caused by the raiders, Kirito's fluctlight is damaged, leaving him comatose. Feeling insecure about the people at the Axiom Church, Alice brings the unconscious Kirito back to their hometown—Rulid Village, disregarding her banishment due to an unabsolved crime. Now, Alice is living an ordinary and peaceful life close by the village, wishing for Kirito to wake up. However, tragedy strikes when Alice notices that the Dark Territory has already started to invade the Human Empire. Reassuming her previous alias, Alice Synthesis Thirty, she promises to defeat the Dark Territory in order to defend the world that Kirito and Eugeo worked so hard to protect.

23 episodes

Episodes
Episode 1: In the Far North
2019-10-13

Six months have passed since the fierce battle against Administrator. Alice has brought Kirito to her childhood home, Rulid Village, where they live peacefully. Gazing out at the world that she saved with Kirito, Alice reflects on all that’s happened.

Runtime: 24 min
Episode 2: Raids
2019-10-20

A force from the Dark Territory is attacking Rulid Village. Though she’d lost her purpose in battle, in order to fight for her family, and for the people that Kirito and Eugeo tried to protect, Alice takes up the Osmanthus Blade once again!

Runtime: 24 min
Episode 3: The Final Load Test
2019-10-27

The mysterious group that attacked the Ocean Turtle turns out to be a secret unit under orders from the U.S. National Security Agency. And its leader, Gabriel, has battled Kirito and Sinon before.

Runtime: 24 min
Episode 4: Dark Territory
2019-11-03

Shasta, commander of the Dark Territory's dark knights, had intended to use Administrator's death as a chance for peace with the Human Empire. But his plans are thwarted by Emperor Vecta's return to the land of darkness.

Runtime: 24 min
Episode 5: The Night Before Battle
2019-11-10

Resolved to fight for humankind, Alice joins the forces of the Human Empire, bringing Kirito with her. But while the forces of darkness boast overwhelming numbers, only thirteen Integrity Knights are available to fight for the Human Empire.

Runtime: 24 min
Episode 6: Battle of the Knights
2019-11-17

The Final Load Test has begun, and the Eastern Gate has collapsed. Incited by Gabriel, now Emperor Vecta, the massive army of the land of darkness pushes on towards the Human Empire.

Runtime: 24 min
Episode 7: Stigma of the Disqualified
2019-11-24

Integrity Knight Renly Synthesis Twenty-Seven, in battle for the first time, flees his position, allowing goblins from the forces of darkness to infiltrate to the tent where Kirito is.

Runtime: 24 min
Episode 8: Blood and Life
2019-12-01

The powerful formal art unleashed by the Integrity Knight Alice inflicts severe casualties on the forces of darkness. Alice encounters an enemy survivor and learns that Emperor Vecta's objective is to find the "Priestess of Light."

Runtime: 24 min
Episode 9: Sword and Fist
2019-12-08

Upon seeing Alice, Gabriel orders his entire army to capture her. The pugilists guild races ahead of the main force. As Alice and Bercouli try to come up with a strategy to counter them, the silent Integrity Knight Sheyta Synthesis Twelve steps forward.

Runtime: 24 min
Episode 10: Stacia, the Goddess of Creation
2019-12-15

Asuna has logged into the Underworld using the superuser account of Stacia, the Goddess of Creation. After she descends, she is reunited with Kirito, thanks to Ronie and Tiese. But soon Alice arrives, leading to a precarious situation!

Runtime: 24 min
Episode 11: Heartless Choice
2019-12-22

Asuna has created a bottomless chasm. The dark knights and the pugilists attempt to cross over to the other side, where the Human Empire Army waits. Meanwhile, Critter releases an announcement about a limited-time beta test for a bizarre new VRMMO.

Runtime: 24 min
Episode 12: Ray of Light
2019-12-29

Due to Gabriel's scheme, U.S. players were given black knight accounts, and are now continuously logging in to the Underworld. They begin mercilessly slaughtering soldiers from both the Human Empire Army and the Dark Territory Army.

Runtime: 24 min
Episode 13: The War of Underworld
2020-07-12

Sinon has logged in with the super-account of Solus, the Sun Goddess and rescues Asuna and the others at the last minute. Meanwhile, Leafa logs in with the super-account of Terraria, the Earth Goddess, and descends to the Underworld.

Runtime: 24 min
Episode 14: End to Eternity
2020-07-19

Despite its modest size, the Human Empire Army and Asuna valiantly battle the wave of American players surging towards them. But they’re hopelessly outnumbered, and the Human Empire soldiers start to fall one after another.

Runtime: 24 min
Episode 15: Instigation
2020-07-26

Bercouli pursues Vecta, who’s abducted Alice. After a long, vicious battle, Bercouli unleashes his secret sword skill, Uragiri, and finally defeats Vecta, despite having sustained severe injuries himself.

Runtime: 24 min
Episode 16: Code 871
2020-08-02

The traitor inside Rath turns out to be a researcher named Yanai. When Higa attempts to restore Kirito, Yanai tries to thwart the operation by holding him at gunpoint. Meanwhile, in the Underworld, Sinon confronts Gabriel, who has logged back in.

Runtime: 24 min
Episode 17: Prince of Hell
2020-08-09

Asuna and the others succumb to Vassago and the Chinese/Korean players. Discovering the catatonic Kirito, Vassago kicks his wheelchair over. Enraged, Klein lunges at Vassago, only to be pinned down by enemy players. Just then, someone unexpected appears.

Runtime: 24 min
Episode 18: Memories
2020-08-16

Sinon manages to severely damage Gabriel, but her strength has been sapped. Leafa collapses after wiping out the American players. And Asuna, her situation now hopeless, gazes at Kirito. But the Black Swordsman continues to wander through his dreams.

Runtime: 24 min
Episode 19: Awakening
2020-08-23

Escaping his nightmares, Kirito regains consciousness at last. With the Night-Sky Blade in his right hand and the broken Blue Rose Sword in his left, he faces off against Vassago, armed with the Mate-Chopper, now enormous in size.

Runtime: 24 min
Episode 20: The Night-Sky Blade
2020-08-30

Alice and Asuna head to the World’s End Altar as Kirito confronts Gabriel. Unless he can defeat Gabriel and return to the real world before the maximum-acceleration phase begins, Kirito will have to spend the next 200 years in the Underworld.

Runtime: 24 min
Episode 21: Beyond Time
2020-09-06

The maximum-acceleration phase has begun. Alice successfully logs out of the Underworld, but Kirito doesn’t make it in time. In the real world, Higa and Kikuoka rush to shut down the STL, in order to disable the maximum-acceleration phase, but…

Runtime: 24 min
Episode 22: Alice
2020-09-13

The “Rath Attack Incident,” masterminded by the American National Security Agency, is over. Now head of the newly formed Oceanic Resource Exploration & Research Institution, Rinko unveils Alice to the world as an authentic artificial general intelligence.

Runtime: 24 min
Episode 23: New World
2020-09-20

Rinko informs Kazuto that Alice is missing. He’s about to rush to the Rath Roppongi branch when the doorbell rings. In a panic, Kazuto throws open the door, only to find a deliveryman there with a huge cardboard box.

Runtime: 24 min

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