Blurring the line between the virtual and the real.
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...
Episodes S01E01 The World of Swords 2012-07-08 23m
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. more S01E02 Beater 2012-07-15 23m
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. more S01E03 The Red-Nosed Reindeer 2012-07-22 23m
Kirito has finally joined a guild made up of close friends in reality. Everything is going well until a tragic accident changes Kirito completely. more S01E04 The Black Swordsman 2012-07-29 23m
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. more S01E05 Murder in the Safe Zone 2012-08-05 23m
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. more S01E06 Illusionary Avenger 2012-08-12 23m
Kirito has figured out the how and now he has to figure out the why. more S01E07 The Temperature of the Heart 2012-08-19 23m
A trip to get a new sword leaves Kirito battling a dragon and his fears. more S01E08 The Sword Dance of Black and White 2012-08-26 23m
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. more S01E09 The Blue-Eyed Demon 2012-09-02 23m
To save a group of players and Asuna from a Boss character, Kirito is forced to play his trump card. more S01E10 Crimson Killing Intent 2012-09-09 23m
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… more S01E11 The Girl of Morning Dew 2012-09-16 23m
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. more S01E12 Yui's Heart 2012-09-23 23m
Yulier, second in command, of the Liberation Army has approached Kirito and Asuna for help saving her friend and her guild. more S01E13 Edge of Hell's Abyss 2012-09-30 23m
While enjoying a fishing tournment Kirito receieves an urgent e-mail from the leader of the guild requesting their return. more S01E14 The End of the World 2012-10-07 23m
Game over. more S01E15 Return 2012-10-14 23m
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. more S01E16 Land of the Fairies 2012-10-21 23m
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. more S01E17 Captive Queen 2012-10-28 23m
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. more S01E18 To the World Tree 2012-11-04 23m
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. more S01E19 The Lugru Corridor 2012-11-11 23m
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? more S01E20 General of the Blazing Flame 2012-11-18 23m
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. more S01E21 The Truth about Alfheim 2012-11-25 23m
While Asuna continues her attempt to escape, another woman in Kirito’s life tries to make sense of her emotions. more S01E22 Grand Quest 2012-12-02 23m
Kirito’s determination to save Asuna borders on the insane. His reckless is stopped when Leafa suddenly logs out. more S01E23 Bonds 2012-12-09 23m
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. more S01E24 Gilded Hero 2012-12-16 23m
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. more S01E25 The World Seed 2012-12-23 25m
Kirigaya Kazuto has beaten death twice but there is one more thing he must do. more ▸ Sword Art Online Alicization 0/24 ▸ Sword Art Online Alicization: War of Underworld 0/23 
Haruka TomatsuAsuna (voice)
Yoshitsugu MatsuokaKazuto Kirigaya (voice), Kirito (voice)
Ayahi TakagakiRika Shinozaki (voice), Lisbeth (voice)
Rina HidakaKeiko Ayano (voice), Silica (voice)
Ayana TaketatsuLeafa (voice), Suguha Kirigaya (voice), Sister (voice)
Hiroaki HirataKlein (voice), Ryōtarō Tsuboi (voice)
Kanae ItouYui (voice)
Hiroki YasumotoAgil (voice)
Miyuki SawashiroSinon (voice), Shino Asada (voice)
Kaori MaedaSelka (voice)
Sanae KobayashiRinko Koujiro (voice)
Ai KayanoAlicia (voice), Alice (voice), Alice Synthesis Thirty (voice)