The world's first VRMMORPG "Sword Art Online" became a game of death. Over a month has passed since 10,000 users were trapped inside the game world. Asuna, who cleared the first floor of the floating iron castle of Aincrad, joined up with Kirito and continued her journey to reach the top floor. With support from the female Information Broker Argo thrown into the mix, clearing the floors seemed to be progressing smoothly, but... The top player groups leading in clears are "ALS" the Aincrad Liberation Squad and "DKB" the Dragon Knights Brigade. Conflict erupts between these two major guilds that should be working together. But behind the scenes exists a mysterious figure pulling the strings... In a dangerous battle of death, there is an "assault" that differs from the "threat". And it will all involve Asuna and Kirito...! Source: Official Website