Kirito is from the popular anime series Sword Art Online (SAO). Kirito was chosen as one of 1,000 beta testers for a new state-of-the-art virtual reality MMORPG called Sword Art Online. After the game is released to the public, he and the rest of the 10,000 players soon discover that they are unable to log out and are trapped in the simulation unless they manage to beat the game.