Kazuto Kirigaya, also known as Kirito, is the main protagonist of the light novel series Sword Art Online, created by Reki Kawahara. He is a skilled gamer who becomes trapped in a virtual reality MMORPG, where players must clear levels to escape. Kirito is known for his exceptional swordsmanship and ability to adapt quickly to challenges. In the series, Kirito often takes on the role of a lone wolf but gradually forms strong bonds with other characters, including Asuna, his primary love interest. His journey explores themes of friendship, courage, and the impact of technology on human relationships.