
While playing ALO, Asuna encounters a mysterious swordswoman named Yuuki, whose combat skill is said to surpass even Kirito's.
Mother's Rosario: Set after the Phantom Bullet and Caliber arc, this one has the particularity that the main character is actually Asuna, instead of Kirito. Caliber: Set shortly after the Phantom Bullet arc, Kirito gathers many of his friends from the various games he has played in order to take on one of the most challenging quests in the reborn ALO: recovering the game's Infinity +1 Sword, Excaliber.
Phantom Bullet: Set in a game called Gun Gale Online, an MMO that focuses on guns and shooting instead of swordplay and magic, a mysterious assassin called "Death Gun" seems to be murdering players by killing their virtual avatars, and Kirito is called upon to enter the game and solve the mystery. #ACCEL WORLD VS SWORD ART ONLINE LEGEND CLASS TEAR FREE#
When Kirito is sent a blurry screenshot of one of the players that looks "suspiciously like Asuna" in another MMO called "ALfheim Online," he dives into the game to free her from the virtual world once and for all.
Fairy Dance: Two months after the "SAO Incident," three hundred players have yet to awaken from their comatose states, including Asuna. The first chapter of the first volume, Aria in the Starless Night, which describes Kirito and Asuna's first meeting, was included in the anime even before the volume was published. It reboots some of the events of the original novel while expanding the world and characters. The story is about Kirito and Asuna facing the challenges of the first few floors of Aincrad together as a team. Progressive: An ongoing Interquel/ Reboot of the Aincrad arc, started in late 2012.
(Main story in LN Volume 1, fleshed out in Volume 2, side stories in part of Volume 8).
Aincrad: The original story, set in the world of Sword Art Online.