Klein's early character design.
Original character art design by abec for the Sword Art Online Volume 1.
Character design by Shingo Adachi
for the Sword Art Online anime.
Klein's ALO avatar design from the OS Production Book
Klein's OS avatar design from the OS Production Book
Ryoutarou's character design from the OS Production Book
Klein's GGO avatar design from SAO Magazine vol.07 for the Alicization anime.
Klein's character design for Code Register
Klein's in-game SA:O avatar from Sword Art Online: Hollow Realization
Tsuboi Ryoutarou (Klein) and other players with their newly purchased copy of Sword Art Online.
Klein's original avatar in SAO.
Klein and Kirito stare at each other's appearance.
An animation of Klein executing «Reaver».
Klein's avatar after the announcement of the death game.
Klein and Kirito part ways.
Klein in the Aincrad Arc opening
Klein shocked after seeing Asuna up-close.
Klein and Agil
at the gathering for the 75th
Floor Boss raid.