Kazuto Kirigaya, also known by his in-game alias Kirito, is the main protagonist of the anime series Sword Art Online. A highly skilled gamer, Kazuto becomes one of the first players trapped in the virtual reality MMORPG, where death in the game means death in real life. Known for his black clothing and dual-wielding sword skills, Kazuto is determined, resourceful, and deeply cares for those around him. His journey involves not only survival but also uncovering the mysteries of the virtual worlds he inhabits, while forming meaningful relationships along the way.