Known as Lightning Flash, Kirito clears the first boss with her
Asuna

Yes

Kirito
Dual blades
Kirito
After 2,000 people die, Kirito attempts to clear the floor 1 boss
Episode 2
This blacksmith helps Kirito craft his Dark Repulser
Lisbeth

Yes

Klein
A rapier for quick attacks, known as the Lambent Light
Asuna
Kirito goes fishing, before he fights the floor 75 boss, The Skull Reaper
Episode 13
This blue haired sniper plays GGO, which is where she meets Kirito
Sinon

No
Agil
Although the name is unknown, this character claims to be an expert mace user
Lisbeth
Kirito reveals his unique sword skills while fighting the floor 74 boss, The Gleam Eyes
Episode 9
Kirito and this blonde haired girl go to the world tree together in ALO
Leafa
No

Heathcliff
A weapon gifted from Kirito, this character uses the Ebon Dagger, a smaller weapon
Silica
Kirito meets a blacksmith to help him create his Dark Repulser
Episode 7
Kirito saves this girl after her pet dragon, Pina, is killed by monsters
Silica

Yes

Kuradeel
A katana named Karakurenai, this character likes to imagine they're a samurai
Klein
Kirito watches a murder in a safe zone, and teams up with an ally to uncover the mystery
Episode 5