Animevania
Ryoutarou Tsuboi
Character profile

Ryoutarou Tsuboi

壷井遼太郎

Klein

Biography

Ryoutarou Tsuboi, known as Klein, is a friendly player who meets Kirito at the start of Sword Art Online and quickly learns from him. He parts ways with Kirito because he refuses to abandon his own inexperienced friends. A katana user and leader of the small guild Fuurinkazan, Klein remains one of Kirito's close allies and wants him to survive the game.

Story spoilers

In ALO, Klein chooses the Salamander race. During the Caliber side story, he falls for the imprisoned Freyja and supports helping her recover her tribe's hammer, only for Freyja to be revealed as Thor in disguise.

11 credits

Anime appearances

Voice actors