Sugou Nobuyuki

Sugou Nobuyuki is the  Former  director of the research institute of Recto Progress Inc. He was Fairy King Oberon (妖精王オベイロン), the main antagonist of the Fairy Dance Arc. He is also Asuna's ex-fiance.

Real Life
In the real world, Sugou has short dark hair, dark eyes and glasses, and wears a business suit. He is quite tall, and has a red tie.

ALfheim Online Avatar
In ALO, his avatar has green eyes and wings, shoulder length blonde hair, and wears a crown, long dark green robe and green cloak, both with an emerald-like jewel. In both cases, he has pale skin, and in ALO, he has long pointed ears, as do all the characters except Cait Siths, but his have gold leaf on top, like Asuna's during the ALO arc.

Background
Originally selected by Asuna's father to marry Asuna, he was adopted into her family on her father's wishes. He attended the same school with Kayaba Akihiko, who he viewed as a rival. During the «Sword Art Online» incident, he took advantage of the chaos to steal test subjects for research along with Asuna. In «ALfheim Online» he adopts the persona Fairy King Oberon (妖精王オベイロン).

Fairy Dance
As the Fairy King Oberon, he keeps Asuna locked up in a bird cage at the top of the World Tree. In the real world, he confronts the powerless Kazuto by voicing his intentions of wedding the unconscious Asuna. While keeping Asuna locked up in ALO, he constantly visited her just to fool around with her. From his actions, one could say that he is a pervert. After Kirito manages to ascend the World Tree and reaches Asuna, Oberon appears and uses his administrator privilages to keep Kirito pinned down with powerful gravity magic, he then runs Kirito through with his own weapon, turning the pain absorber program level down so that Kirito experiences real pain from the injury, Oberon then begins to sexually assault Asuna in front of the helpless Kirito. Fortunately, Kayaba Akihiko saves Kirito by overriding Oberon's authority and Kirito is able to then set the pain absorber program to level 0, causing every injury to feel as if it was 100% real. Kirito then easily defeats Sugou, amputating his hand, bisecting him then stabbing his sword though his eye. Afterwards, in the real world, Sugou attempts to kill Kirito when he is running to Asuna's hospital. This backfired and ended up with him going to prison.