how old is kirito and asuna in sao
10 Kazuto Kirigaya / Kirito (14 – 17)
In the virtual reality of Sword Art Online, he’d develop many names, from the Black Swordsman to the Star King. Kazuto is 14 at the start of the Aincrad Arc, 16 towards its end, and 17 throughout the Phantom Bullet Arc and Alicization Arc.