The first virtual game world, as well as the setting of the first arc of the story, known as SAO for short. The world takes the form of a giant floating castle called Aincrad, with 100 floors in it. Each floor has a medieval-themed setting and a dungeon with a boss, which has to be defeated before players can advance to the next higher floor. Like most RPGs, it implements a level-based system. However, the game is altered in a manner in which players are unable to log out, and if players die in-game, their real life body dies too. = Summary By: Lhester Quintans , Follow Me To keep updates :)