Kirigaya Kazuto is also known by his in-game alias Kirito, is the main protagonist of the Sword Art Online light novel series written by Reki Kawahara. He is a skilled swordsman and a brilliant strategist who is known for his calm and collected demeanor. Kirito was one of the 1,000 players who were trapped in the first-ever virtual reality massively multiplayer online role-playing game VRMMORPG, Sword Art Online. He quickly rose to fame as one of the best players in the game, and he was instrumental in defeating the game's final boss and freeing the trapped players. A fanart Sword Art Online progress bar for YouTube with Kirito Kirigaya Kazuto Run.