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...

The goddess Urd is in danger, and only Kirito and his friends can save her! The evil frost giants have invaded her homeland of Jotunheim, bringing death and destruction in their wake. The linchpin of it all is the frost giant king's sword-the legendary weapon Excalibur! If Kirito's crew can make it to the end of the dungeon and pull the sword from the stone, peace will be brought to the land once more!

Kirito and Sinon's battle with Death Gun is over, but mere weeks later, something strange is afoot in the next-generation VRMMO ALfheim Online. A new duelist with a custom sword skill is defeating all comers--including Kirito! But when Asuna goes to face this duelist, she receives something she never expected: an invitation to an exclusive guild! But what is their aim? The Mother's Rosario arc begins!

Two years after waking up in a mysterious fantasy world, Kirito and his oddly human NPC friend, Eugeo, continue their quest to become Integrity Knights--and find Alice, who disappeared so long ago and yet has somehow lingered in the back of Kirito's mind. Their journey takes them to the Imperial Swordcraft Academy, where they must train to become two of the top twelve seats in the class to have even a hope of seeing Alice again. Meanwhile, as Asuna desperately searches for Kazuto Kirigaya, she stumbles across the deeper secret of his new world...

A year after Kazuto and Asuna escaped from Aincrad, the deadly setting of Sword Art Online, they're still coping with the aftermath as they try to recover from the harrowing experience. Meanwhile, there's a new VRMMO game sweeping the world's gamers--Gun Gale Online. When a mysterious player who calls himself "Death Gun" claims to be responsible for real-world deaths, Kazuto (aka Kirito) is recruited to enter the game to investigate, bringing an end to his hard-won peace!

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! 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...!