Yui

Yui

ユイ

Gender

Female

About

A young and cheerful girl with long black hair who looks no older than 10 years old. Kirito and Asuna found her in a forest on the 22nd floor of Aincrad. ~!Her true identity is actually a players' self-regulation program for mental maintenance, Mental Health Counseling Program or MHCP. After being forbidden by the game master Akihiko Kayaba to come close to the players at the beginning of the death game, she was flooded with errors and broke down. In the process she became an AI that possesses actual intelligence. When the Cardinal system governing Sword Art Online decided to erase her, Kirito turned her into a tear shaped crystal pendant. He actually converted her to a part of environmental data for the client program and was saved to his NerveGear's local memory.!~ ~!In ALfheim Online, she was able to return to her normal form because ALO was based on a copy of the SAO server. She supports Kirito there as a Navigation Pixie. Kirito and Asuna still treat her as their daughter.!~

Appears In

Sword Art Online
69%

Sword Art Online

SUPPORTING Finished
Anime 2012
25 eps
Sword Art OFFline
55%

Sword Art OFFline

SUPPORTING Finished
Anime 2012
9 eps
Sword Art Online EXTRA EDITION
61%

Sword Art Online EXTRA EDITION

SUPPORTING Finished
Anime 2013
1 eps
Sword Art Online II
65%

Sword Art Online II

SUPPORTING Finished
Anime 2014
24 eps
Sword Art Offline: Extra Edition
60%

Sword Art Offline: Extra Edition

SUPPORTING Finished
Anime 2014
1 eps
Sword Art Offline II
61%

Sword Art Offline II

SUPPORTING Finished
Anime 2014
9 eps
Sword Art Online the Movie: Ordinal Scale
73%

Sword Art Online the Movie: Ordinal Scale

SUPPORTING Finished
Anime 2017
1 eps
Sword Art Online
77%

Sword Art Online

SUPPORTING Releasing
Manga 2009
Accel World
68%

Accel World

BACKGROUND Finished
Manga 2010
42 ch
8 vol
Sword Art Online 4-koma
64%

Sword Art Online 4-koma

SUPPORTING Finished
Manga 2010
39 ch
3 vol
Sword Art Online SS: Caliber SS-han
61%

Sword Art Online SS: Caliber SS-han

MAIN Finished
Manga 2011
3 ch
1 vol
Sword Art Online: Fairy Dance
66%

Sword Art Online: Fairy Dance

SUPPORTING Finished
Manga 2012
14 ch
3 vol
Sword Art Online: Phantom Bullet
71%

Sword Art Online: Phantom Bullet

SUPPORTING Finished
Manga 2014
20 ch
4 vol
Sword Art Online: Project Alicization
73%

Sword Art Online: Project Alicization

SUPPORTING Finished
Manga 2016
30 ch
5 vol
Sword Art Online: Mother's Rosary
73%

Sword Art Online: Mother's Rosary

SUPPORTING Finished
Manga 2014
15 ch
3 vol
Sword Art Online: Alicization
75%

Sword Art Online: Alicization

SUPPORTING Finished
Anime 2018
24 eps
Sword Art Online Movie: Ordinal Scale - Sword Art Offline
71%

Sword Art Online Movie: Ordinal Scale - Sword Art Offline

MAIN Finished
Anime 2017
1 eps
Sword Art Online: Ordinal Scale
68%

Sword Art Online: Ordinal Scale

SUPPORTING Finished
Manga 2017
20 ch
5 vol
Sword Art Online: Kirito no Aincrad Night
55%

Sword Art Online: Kirito no Aincrad Night

MAIN Finished
Manga 2016
8 ch
1 vol
Sword Art Online: Alicization - War of Underworld
75%

Sword Art Online: Alicization - War of Underworld

SUPPORTING Finished
Anime 2019
12 eps
Sword Art Online: Kirito no Gun Gale Wars
54%

Sword Art Online: Kirito no Gun Gale Wars

MAIN Finished
Manga 2019
7 ch
1 vol
Sword Art Online Comic Anthology

Sword Art Online Comic Anthology

SUPPORTING Finished
Manga 2013
2 vol
Sword Art Online: Alicization - War of Underworld Part 2
74%

Sword Art Online: Alicization - War of Underworld Part 2

SUPPORTING Finished
Anime 2020
11 eps