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Warning Spoiler Alert: This wikia contains details about future plotlines described in the light novels. Do not proceed unless you want to be spoiled.
Personal Information
Avatar Name (Japanese)[?] シンカー (Shinkā)
In-Game Name[?] Thinker
Gender Male
VR Played
Affiliation «Aincrad Liberation Force»
Family Yulier (Wife in real world)
Occupation Administrator of «MMO Today»
Voiced By (Japanese) Takahiro Mizushima
First Appearance
Novel Volume 2, Morning Dew Girl
Manga 4koma Manga Log.013
Anime Episode 12

Thinker (シンカー, Shinkā?) is one of the 10,000 players who were trapped in «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 «Aincrad Liberation Force» (ALF).


Real World Appearance/Sword Art Online AvatarEdit

Thinker has umber-brown, wavy hair and brown eyes.[1] In Sword Art Online, Thinker wore a teal trench coat, white gloves and gray trousers.[2] In the real world, he wears a businessman suit.[1]

ALfheim Online AvatarEdit

In ALfheim Online, Thinker is an Undine, retaining the same facial appearance except for the pointed ears, bluish eyes and light blue wings. He wears light white and blue attire.


Thinker desired to help those in need. During his time in SAO, he spent most of his time spreading information and resources equally among as many players as possible in order for them to use that mutual aid to clear the death game. Kirito described Thinker as having a character that gave off an aura of gentleness.[3]


Aincrad ArcEdit

Morning Dew GirlEdit

He is trapped in the dungeon under the «Black Iron Palace» by a faction leader named Kibaou and is later rescued by Kirito and Asuna.

Fairy Dance ArcEdit

After returning to the real world, he marries Yulier, re-designs his site and transforms it to MMO Tomorrow, an information site focused on VRMMOs in general, including news and events held in each one individually. He later participates in the SAO clearing party along with Yulier and, with the release of New Aincrad, Thinker, along with Yulier, are shown flying to New Aincrad as Undines.



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