READ THE NOVEL THAT IGNITED THE PHENOMENON! A year has passed since Kirito and Asuna’s return from the Underworld. With them is Alice, who has been given a physical body. But their peace is quickly broken when the three are suddenly thrust into an unfamiliar game, Unital Ring. This new world is a survival MMO that fuses together every VRMMO created with the Seed program. As soon as it starts, Kirito finds himself with nothing but his underwear. Now, he’s got to challenge a mysterious VRMMOSVG under desperate circumstances!

Read the novel that ignited the phenomenon! After three hundred years of conflict, a new era begins for the Underworld. The Lost Child of Vecta, who seemed to appear out of nowhere, has defeated the Dark God and given the world its first taste of peace. The human realm and dark realm have begun to intermingle, sparking the beginning of a much-needed cultural exchange. But while some see this as an opportunity to bury the hatchet and move forward, others are determined to sow the seeds of chaos anew. High in Central Cathedral, Apprentice Integrity Knight Ronie Arabel's heart sinks as she receives foreboding words from Swordsman Delegate Kirito: "At this rate, there's going to be another war."

READ THE NOVEL THAT IGNITED THE PHENOMENON! In the world of Unital Ring, the foreboding presence that has been targeting the party finally makes itself known! Elsewhere, a reunion with Seijirou Kikuoka leads Kirito, Asuna, and Alice back to the Underworld, where two-hundred years have passed since the great war. There, they meet descendants of Ronie and Tiese, as well as the new leader of the Integrity Knights. But something about this man seems all too familiar...A certain glint in his eyes reminiscent of someone dearly departed...

Read the novel that ignited the phenomenon! In the year 2022, gamers rejoice as Sword Art Online - a VRMMORPG (Virtual Reality Massively Multiplayer Online Role Playing Game) like no other - debuts, allowing players to take full advantage of the ultimate in gaming technology: NerveGear, a system that allows users to completely immerse themselves in a wholly realistic gaming experience. But when the game goes live, the elation of the players quickly turns to horror as they discover that, for all its amazing features, SAO is missing one of the most basic functions of any MMORPG - a log-out button. Now trapped in the virtual world of Aincrad, their bodies held captive by NerveGear in the real world, users are issued a chilling ultimatum: conquer all one hundred floors of Aincrad to regain your freedom. But in the warped world of SAO, "game over" means certain death - both virtual and real...

After two hundred years, Kirito is finally reunited with Selka, Ronie and Tiese, but the girls are shocked to see Eolyne, who bears a striking resemblance to their fallen comrade. Then, with no time to process their feelings, the three Integrity Knights are thrown into battle alongside Eolyne and the Integrity Pilots. The old defenders of the Underworld join the new as the next chapter of the Unital Ring arc commences!

READ THE NOVEL THAT IGNITED THE PHENOMENON! It's back to the drawing board as the kidnapper just barely slips from Kirito's grasp. The new plan calls for a visit to the scene of the crime so that Asuna can use her scrying art to peek into the past, though what she learns is troubling to say the least...But before they can act on the new information, the villain strikes again! This time, Ronie and Tiese have been captured, and their fates rest in the claws of a young yellow dragon...!

After successfully untangling themselves from a dangerous encounter with the Black Poncho Man and clearing the fifth floor of Aincrad, Kirito and Asuna head to the next challenge, an area filled with...puzzles? What's more, because of the precarious balance of power between two large guilds aiming for the same item, "The Flag of Valor", there's also a murderous PK group to be wary of. As the problems seem to pile up, Kirito and Asuna face the sixth floor of Aincrad completely unaware of the malicious trap awaiting them!!

"There's no way to beat this game. The only difference is when and where you die..." One month has passed since Akihiko Kayaba's deadly game began, and the body count continues to rise. Two thousand players are already dead. Kirito and Asuna are two very different people, but they both desire to fight alone. Nonetheless, they find themselves drawn together to face challenges from both within and without. Given that the entire virtual world they now live in has been created as a deathtrap, the surviving players of Sword Art Online are starting to get desperate, and desperation makes them dangerous to loners like Kirito and Asuna. As it becomes clear that solitude equals suicide, will the two be able to overcome their differences to find the strength to believe in each other, and in so doing survive? Sword Art Online: Progressive is a new version of the Sword Art Online tale that starts at the beginning of Kirito and Asuna's epic adventure--on the very first level of the deadly world of Aincrad!

On the eightieth floor of the Central Cathedral, Kirito, Asuna, and Alice reunite with the petrified visage of Selka...and discover two more statuesque figures in need of assistance! Before Kirito can figure out a cure, though, he’s pulled away to Planet Admina to investigate an encroaching threat to the Underworld. Meanwhile, in Unital Ring, Sinon, Silica, and company are giving their all in the fight against the field bosses, but the conflict intensifies in a way almost no one could have predicted...