Sword Art Online (ソードアート・オンライン) is a Japanese light novel series written by Reki Kawahara and illustrated by abec. The series takes place in the near future and focuses on protagonists Kazuto "Kirito" Kirigaya and Asuna Yuuki as they play through various virtual reality MMORPG worlds. +more
An anime television series produced by A-1 Pictures, known simply as Sword Art Online, aired in Japan between July and December 2012, with a television film Sword Art Online: Extra Edition airing on December 31, 2013, and a second season, titled Sword Art Online II, airing between July and December 2014. An animated film titled Sword Art Online The Movie: Ordinal Scale, featuring an original story by Kawahara, premiered in Japan and Southeast Asia on February 18, 2017, and was released in the United States on March 9, 2017. +more
Sword Art Online has received widespread commercial success, with the light novels having over 30 million copies sold worldwide. The light novel series had good reviews, mainly on later arcs, while other series like Progressive were praised since the beginning. +more
Synopsis
Setting
The light novel series spans several virtual reality worlds, beginning with the game, Sword Art Online (SAO), which is set in a world known as Aincrad. Each world is built on a game engine called the World Seed, which was initially developed specifically for SAO by Akihiko Kayaba, but was later duplicated for Alfheim Online (ALO), and later willed to Kirito, who had it leaked online with the successful intention of reviving the virtual reality industry. +more
Plot
In 2022, a virtual reality massively multiplayer online role-playing game (VRMMORPG) called Sword Art Online (SAO) will be released. With the NerveGear, a helmet that stimulates the user's five senses via their brain, players can experience and control their in-game characters with their minds. +more
One of the players named Kazuto "Kirito" Kirigaya, is one of 1,000 testers in the game's previous closed beta. With the advantage of previous VR gaming experience and a drive to protect other beta testers from discrimination, he isolates himself from the greater groups and plays the game alone, bearing the mantle of "beater", a portmanteau of "beta tester" and "cheater". +more
In the real world, Kazuto discovers that 300 SAO players, including Asuna, remain trapped in their NerveGear. As he goes to the hospital to see Asuna, he meets Asuna's father Shouzou Yuuki who is asked by an associate of his, Nobuyuki Sugou, to make a decision, which Sugou later reveals to be his marriage with Asuna, angering Kazuto. +more
One year after the events of SAO, at the prompting of a government official investigating strange occurrences in VR, Kazuto takes on a job to investigate a series of murders involving another VRMMORPG called Gun Gale Online (GGO), the AmuSphere (the successor of the NerveGear), and a player called Death Gun. Aided by a female player named Shino "Sinon" Asada, he participates in a gunfight tournament called the Bullet of Bullets (BoB) and discovers the truth behind the murders, which originated with a player who participated in a player-killing guild in SAO. +more
Kazuto is later recruited to test an experimental FullDive machine, Soul Translator (STL), which has an interface far more realistic and complex than the previous machine he had played, to help RATH, a research and development organization under the Ministry of Defense (MOD), develop an artificial intelligence named A. L. +more
Meanwhile, in the real world, conflict escalates as American forces raid RATH's facility in the Ocean Turtle in an effort to take A. L. +more
One month later, Kirito and the others have their accounts forcibly migrated to Unital Ring, a new VRMMORPG which incorporates locations from all the other environments they previously visited, and investigate the cause while meeting some familiar faces.
Production
Reki Kawahara wrote the first volume in 2001 as a competition entry for the 2002 ASCII Media Works Dengeki Game Novel Prize (電撃ゲーム小説大賞), but refrained from submitting it as he had exceeded the page limit; he instead published it as a web novel under the pseudonym Fumio Kunori. Over time, he added three further main arcs and several short stories which, like the first arc "Aincrad", were later adapted into the light novels. +more
For the protagonist Kirito, Kawahara was asked if Kirito's personality and character were based on his own; he answered that he usually does not put aspects of himself into his characters, and jokingly remarked: "but if I had to say there was a point of similarity between Kirito and myself, it is the fact that neither of us are good at forming parties. We [both] tend to play solo in these games a lot. +more
Publication
After Kawahara's request for Sword Art Online to be published was approved, he started working with illustrator abec on the light novel series. The first volume was published in print on April 10, 2009, and 27 volumes have been published as of October 7, 2022. +more
Kawahara also writes the Sword Art Online: Progressive series, which covers Kirito's adventures on the first few floors of Aincrad. The first volume of Progressive was released on October 10, 2012, and eight volumes have been released as of June 10, 2021. +more
At their Japan Expo USA panel, Yen Press announced the rights to publish the light novels; the first volume was released on April 22, 2014. Yen Press later announced their license of the Sword Art Online: Progressive series, which is scheduled for release in 2015. +more
There are a number of dōjinshi (fan works) written by Kawahara under the pseudonym Fumio Kunori, titled Sword Art Online Material Edition (ソードアート・オンライン・マテリアル・エディション). An 80-page assemblage of some of the Material Edition volumes was published on February 13, 2011; another, Material Edition: Remix, was published on September 6, 2019. +more
Media
Manga
There are ten manga adaptations of the series, all written by Reki Kawahara and published by ASCII Media Works. Sword Art Online: Aincrad (ソードアート・オンライン アインクラッド), illustrated by Tamako Nakamura, was serialized in Dengeki Bunko Magazine between the September 2010 and May 2012 issues. +more
A spin-off manga starring Lisbeth, Silica, and Leafa, titled Sword Art Online: Girls Ops (ソードアート・オンライン ガールズ・オプス) and illustrated by Neko Nekobyō, began serialization in the July 2013 issue of Dengeki Bunko Magazine. Following the discontinuation of Dengeki Bunko Magazine in April 2020, the manga was moved to the DenPlay Comic website. +more
A sixth manga, titled Sword Art Online: Phantom Bullet and illustrated by Kōtarō Yamada, had its first chapter serialized in the May 2014 issue of Dengeki Bunko Magazine, with following chapters being digitally serialized on Kadokawa's Comic Walker website. A seventh manga, titled Sword Art Online: Calibur and illustrated by Shii Kiya, was serialized in Dengeki G's Comic between the September 2014 and July 2015 issues. +more
A tenth manga, titled Sword Art Online: Project Alicization and illustrated by Kōtarō Yamada, based on the Alicization arc of the light novel series, began serialization in the September 2016 issue of Dengeki Bunko Magazine. It moved to Web DenPlay Comic due to the discontinuation of Dengeki Bunko Magazine.
Anime series
An anime adaptation of Sword Art Online was announced at Dengeki Bunko Autumn Festival 2011, along with Reki Kawahara's other light novel series, Accel World. The anime is produced by Aniplex and Genco, animated by A-1 Pictures and directed by Tomohiko Ito with music by Yuki Kajiura. +more
The anime has been licensed in North America by Aniplex of America and an English-language dub premiered on Adult Swim's Toonami from July 27, 2013 to February 15, 2014. The series was released by Aniplex of America in four DVD and Blu-ray sets, with special extras on the BD sets, between August 13 and November 19, 2013. +more
A year-end special, titled Sword Art Online Extra Edition, aired on December 31, 2013. The special recapped the previously aired anime series and included some new footage. +more
At the end of the special, the anime television series was confirmed for a second season, titled Sword Art Online II, which premiered on July 5, 2014. The first 14 episodes of the second season are an adaptation of volumes five and six the light novels that cover the Phantom Bullet arc. +more
The third season of Sword Art Online, titled Sword Art Online: Alicization, and a spin-off anime, titled Sword Art Online Alternative Gun Gale Online, were announced in 2017. Sword Art Online Alternative Gun Gale Online, animated by 3Hz, premiered in April 2018. +more
Music
Yuki Kajiura composed the soundtrack for the Sword Art Online anime, which was later released in the limited edition of the anime's fourth and seventh Blu-ray and DVD volumes. The first volume of the second season's soundtrack was bundled with the limited edition of the season's third and seventh Blu-ray and DVD volumes.
For the first 14 episodes of season one, the opening theme song is "Crossing Field" by LiSA, and the ending theme song is "Yume Sekai" (ユメセカイ) by Haruka Tomatsu. From episode 15 onward, the opening theme is "Innocence" by Eir Aoi and the ending theme is "Overfly" by Luna Haruna. +more
For the second season, the first opening theme is "Ignite" by Aoi, and the first ending theme is "Startear" by Haruna. The second opening theme is "Courage" by Tomatsu, and the second ending theme is "No More Time Machine" by LiSA, with the third ending theme being "Shirushi" (シルシ), also by LiSA. +more
For the third season, the first opening theme is "Adamas" by LiSA, and the first ending theme is "Iris" (アイリス) by Aoi. The second opening theme is "Resister" by Asca and the second ending theme is "Forget-me-not" by ReoNa, with episode 19 featuring "Niji no Kanata ni" (虹の彼方に), also sung by ReoNa.
For the second part of the third season, the first opening theme is "Resolution" by Tomatsu, and the first ending theme is "Unlasting" by LiSA. The second opening theme is "Anima" by Reona and the second ending theme is "I will" by Aoi. +more
A number of character songs were included in the Blu-ray and DVD volume releases of the anime. These were collected into two compilation albums: Sword Art Online Song Collection, which included character songs released in the season one volumes, was released on August 27, 2014, while Sword Art Online Song Collection II, which included character songs released in the season two volumes, was released on March 22, 2017.
In celebration of the anime's 10th anniversary, the song "Sо̄kyū no Fanfare" (蒼穹のファンファーレ) will be used as the theme song for the commemorative event "Sword Art Online: Full Dive", to be held on November 6, 2022. The song was composed by Yuki Kajiura and will be performed by ReoNa, ASCA and Eir Aoi, who were in charge of previous opening and ending themes for the series.
Theatrical films
An animated film titled Sword Art Online The Movie: Ordinal Scale, featuring an original story by Kawahara set after the events of Sword Art Online II, premiered in Japan and Southeast Asia on February 18, 2017, and was released in the United States on March 9, 2017.
After the finale of Sword Art Online: Alicization - War of Underworld, an anime adaptation of Sword Art Online: Progressive was announced. It was later revealed to be a new film titled Sword Art Online Progressive: Aria of a Starless Night, which premiered on October 30, 2021. +more
After the premiere of Sword Art Online Progressive: Aria of a Starless Night, a sequel film titled Sword Art Online Progressive: Scherzo of a Dark Dusk was announced. The film was scheduled for September 10, 2022, but was later delayed due to production issues caused by the COVID-19 pandemic. +more
Video games
A stage event at the Dengeki Bunko Autumn Festival 2011 revealed that Reki Kawahara's light novels would get video game adaptations. The first Sword Art Online adaptation, titled Sword Art Online: Infinity Moment (ソードアート・オンライン -インフィニティ・モーメント-), was published by Namco Bandai Games for the PlayStation Portable. +more
Sword Art Online: Hollow Fragment is a PlayStation Vita game released in Japan on April 24, 2014. Sword Art Online: Hollow Fragment takes place in the same alternative storyline as Sword Art Online: Infinity Moment, and it includes all content of "Floor Clearing" from that previous game with the addition of new unexplored "Hollow Area" of Aincrad. +more
A third video game developed by Artdink and titled Sword Art Online: Lost Song was released in Japan on March 26, 2015 on the PlayStation 3 and Vita platforms, with an English version being released in Asia. The game's producer revealed in October 2014 that the game is an open-world action RPG featuring an original storyline, set within Alfheim Online, where characters are able to fly. +more
A fourth game titled Sword Art Online: Hollow Realization was released in Japan for the PS4, Vita, and Windows on October 27, 2016 and worldwide on November 8, 2016 for the PS4 and Vita.
A social network game called Sword Art Online: End World was released for Japanese feature phones and smartphones on February 28, 2013 with more than 1 million registered users. It was discontinued in September 2017. +more
Kirito, Asuna, Leafa, Yuuki and SAO Alternative: Gun Gale Online protagonist LLENN appear in Dengeki Bunko: Fighting Climax, a fighting game by Sega featuring various characters from works published under the Dengeki Bunko imprint. A browser game titled Sword Art Quest and its sequel smartphone game, Sword Art Quest II provide challenges to users to upgrade their characters to receive rewards. +more
A virtual reality massive multiplayer online game was in development by Kadokawa and IBM Japan, but was only a demo and will not be released as a full game.
An action role-playing game titled Accel World vs. +more
The Black Swordsman (黒衣剣士) is a Chinese 3D role-playing game where the player can control 3D characters and experience Sword Art Online, Alfheim Online, and Gun Gale Online. It is developed by Yun Chang Game under Bandai Namco's supervision. +more
Bandai Namco released Sword Art Online: Memory Defrag RPG for Android and iOS in August 2016. It was released outside of Japan on January 24, 2017. +more
Bandai Namco released the Sword Art Online: Integral Factor free-to-play MMORPG for Android and iOS in December 2017, created in conjunction with prolific mobile MMO developer . The English version was released in March 2018. +more
A game based on Gun Gale Online, Sword Art Online: Fatal Bullet, was released for the PlayStation 4, Xbox One and Windows on February 23, 2018.
Bandai Namco Entertainment released the Sword Art Online VR: Lovely Honey Days mobile game for iOS and Android devices in Japan in October 2018. The game's first episode is free-to-play, while the second episode and so on can be purchased as additional content.
Bandai Namco released Sword Art Online Arcade: Deep Explorer in Japanese arcades on March 19, 2019. It is an exploration action RPG that supports up to three players in online co-op and it is the first arcade game in the Sword Art Online series.
A video game based in the Underworld of Project Alicization, Sword Art Online: Alicization Lycoris, was announced by Bandai Namco for release on the PS4, Xbox One, and Windows. The game is also the first game in the franchise to faithfully follow the canon storyline in the initial stage, adapting from Alicization Beginning, volume 9, to Alicization Uniting, volume 14. +more
A China-exclusive mobile MMO, Sword Art Online: Black Swordsman Ace, was released in 2021.
In 2022, the mobile game Sword Art Online: Variant Showdown was announced, with a release date later the same year. It will feature a battle royale mode which will be added in a post-launch update, a first for an SAO game.
Live-action series
Skydance Television announced on August 2, 2016 that they had acquired the global rights to produce a live-action television adaptation of Sword Art Online light novel series. Laeta Kalogridis has been attached to write a script for the pilot, and will also serve as executive producer for the series alongside Skydance CEO David Ellison, Dana Goldberg, and Marcy Ross. +more
Reception
Sales
According to Oricon, Sword Art Online was the top selling light novel series of 2012, with eight volumes figuring among the top selling light novels. It was ranked first in the 2012 and 2013 Kono Light Novel ga Sugoi! rankings, as well as top five placement in 2011, 2014, 2015, 2016, 2017, 2018 and top 10 in 2019. +more
Critical response
Richard Eisenbeis of Kotaku hails Sword Art Online as the smartest series in recent years, praising its deep insight on the psychological aspects of virtual reality on the human psyche, its sociological views on creating a realistic economy and society in a massively multiplayer online game setting, and the writing staff's ability to juggle a wide variety of genres within the series. Eisenbeis particularly noted how the romance between Kirito and Asuna is explored bringing "definition to exactly what love is like in a virtual world. +more
Rebecca Silverman of Anime News Network has criticized the series as having pacing problems, logical gaps and "sloppy writing". Theron Martin of Anime News Network criticized the story as struggling "to achieve and maintain the level of gravitas that life-or-death danger should have", while calling it unwilling to commit to Kirito's "lone wolf" image. +more
While the anime received criticism in western media, the later light novel arcs, such as Mother's Rosario and Alicization, received praise. Anime News Network reviewer Theron Martin praised many of the volumes of the Alicization arc, saying that the author's writing had improved. +more
Cultural impact
Kirito makes a cameo appearance in the eighth episode of the anime series Eromanga Sensei, with Yoshitsugu Matsuoka reprising his role.
Sword Art Online is sometimes considered to be part of the isekai genre, although Kawahara himself does not agree. The 2012 anime adaptation of Sword Art Online popularized the isekai genre in anime, which led to more isekai web novels being published on the website Shōsetsuka ni Narō ("Let's Become Novelists") and a number of Narō isekai novels being adapted into anime.
Ernest Cline, the writer of 2011 novel Ready Player One, discussed Sword Art Online in an interview, noting how he met its writer Reki Kawahara at an event in Japan where they discussed how they independently developed similar ideas related to virtual reality. It has also been noted that the Phantom Bullet (Gun Gale Online) arc released in print in 2010 depicts an early fictional battle royale game called Bullet of Bullets.
On June 12, 2015, the now-inactive Chinese Ministry of Culture listed Sword Art Online II among 38 anime and manga titles banned in China. In July 2020, Sword Art Online became one of seven manga titles to be removed from Books Kinokuniya in Australia for claims of promoting child pornography.
In the 2020 edition of Kono Light Novel ga Sugoi!, Sword Art Online was voted by the public in an online poll and by a jury (critics, influencers, and other people related to the light novel industry) as the best light novel series of the 2010s, being the first in the ranking with 1,728.95 points.
Notes
2009 Japanese novels
2012 anime television series debuts
2014 anime television series debuts
2018 anime television series debuts
Adventure anime and manga
Anime and manga based on light novels
Anime composed by Yuki Kajiura
Artificial intelligence in fiction
Battle royale anime and manga
Book series introduced in 2002
Book series introduced in 2009
Brain–computer interfacing in fiction
Censored television series
Fiction about death games
Fictional video games
Kadokawa Dwango franchises
Light novels first published online
Mass media franchises
Massively multiplayer online role-playing games in fiction
Novels set in the 2020s
Science fiction anime and manga
Television series set in the 2020s
Television shows based on light novels
Tokyo MX original programming
Video games set in the 2020s
Virtual reality in fiction
Works banned in China
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