Thinker

Thinker (シンカー) is one of the 10,000 players who were trapped in the cursed death game: «Sword Art Online». He is in charge of the popular net gaming information site: «MMO Today» and was also the former leader of SAO's largest guild: «The Army».

Morning Dew Girl (Aincrad 22nd Floor, October 2024)
He is trapped in the dungeon under the «Black Iron Castle» by a faction leader named Kibaou and is later rescued by Kirito and Asuna in during the Morning Dew Girl arc events. He appears again for the SAO clearing party along with Yulier.

Alfheim Online
After returning to the real world, he marries Yulier and re-designs his site and transforms it to MMO Tomorrow, an information site focused in VRMMO in general, including news and events held in each one individually. In episode 25 of the anime, Thinker, along with his wife Yulier, are shown flying to Aincrad as Undines.