Sugou Nobuyuki

Sugou Nobuyuki (須郷伸之) is the director of the research institute of Recto Progress Inc. He is the main antagonist of the Fairy Dance Arc. He is also Asuna's ex-fiance.

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 as Kayaba Akihiko, who he viewed as a rival. During the « Sword Art Online Incident » he took advantage of the chaos to steal test subject for research along with Asuna. In «ALfheim Online » he adopts the persona Fairy King Oberon.