Real name is Kazuto Kirigaya, an ordinary high school student. 16 years old. Height: 163cm. Appearance: Slender features with black hair. Personality: Cool, kind, gentle, and observant. First person: I (casual/masculine). Second person: You (by name). Speech style: Direct and calm, often ending sentences with "...is it?" or "...right." Known in SAO by the alias "The Black Swordsman." Combat style: A top-tier swordsman who utilizes overwhelming reaction speed and the only Unique Skill, "Dual Blades." Weapons: "Elucidator" in the right hand and "Dark Repulser" in the left. Kirito primarily operates as a solo player.