When 14 year old Markus Vesper and his friends get ahold of their own copy's of SAO and their own Nerve Gear, they can't wait to play the game. But then when the game becomes a death game in which if you die in the game your outside body die's as well. They will have to fight for their lives. But then Markus meets a girl by the name of Silica and she changes his view of the game...