The work takes 2022 as the stage, and the major electronic machinery manufacturer "ARGUS" has developed-"NERvGear"-a machine that can connect to the virtual world. Complete virtual reality can finally be realized. The protagonist Kirito uses NERvGear to play VR MMORPG "Sword Art Online". Fortunately, Kirito participated in the closed beta and bought the official version, and immediately after the official operation, he "fully sneaked" to enjoy the official version of the SAO world.
Just more than four hours after the game, Kirito discovered that the "logout" command had disappeared. Kirito, who thought it was just a temporary error in the system, and all the players who began to fall into chaos were teleported to the starting place square together, and the game designer’s death was heard. The boss of the top floor of "Grant", reaching the "Complete Strategy" is the only way to leave this world.
