Name: Kazuto
Surname: Kirigaya
Nickname: Kirito
Known as: The Black Swordman

Kirito is the main protagonist of the series. He is the protagonist and is a "solo" player, a player who hasn't joined a guild and usually works alone. When it is announced that the players of Sword Art Online can no longer logout, he is surprised like everyone else, but unlike everyone else he quickly gets over it and accepts it, to an extent. He mainly uses a one-handed sword and usually wears all black in-game, as it adds to stealth. He can also use two blades at once, a unique skill to him and he only uses it in emergencies to avoid attention for being one out of the two people to have unique skills. His game alias is Kirito, which is created by taking the syllables of the first and last Kanji of his real last and first names respectively: (Kirigaya Kazuto). In the real world, he lives with his mother and younger cousin/sister in a family of 3. He was adopted by Kirigaya Minetaka and Midori (Suguha's parents). His mother (who is actually Midori's sister) and father passed away after an accident when he was about 1 year old. When he was 10 years old, he found out the truth. He treats playing in a VRMMO the same as living in the real world (a result of living in SAO for two years). He is very much in love with Asuna, as shown in Volume 4 when he tries to fly up the World Tree uncaring whether he falls and his avatar dies or not. Furthermore he has a very strong will, so much so that he can resist a VR environment's effects to a certain extent, like delaying his death for a few seconds as well as moving an immovable object. Also, he can apply the fighting skills he learned in VRMMOs in real life.