Yui
Artificial intelligence girl in charge of mental care
An artificial intelligence girl in charge of Kirito and Asuna's mental care, serving as their emotional support.
Quotes
- 「Stay healthy」
- 「I am the child of your hearts」
- 「I'm always by your side」
- 「It's okay, I'll protect everyone」
- 「I love you」
Trivia
- Originally designed as a mental care AI within SAO.
- The name derives from the Japanese 'Yui' (唯), which also implies 'one and only'.
- Voiced by Saori Hayami in the anime.
- Also appears in games and manga, highly popular among fans.
- A character symbolizing the work's important theme of 'heart connections'.
Alternate names
Yui
Yui-chan
Mental Care AI
Profile
- Species
- Artificial Intelligence
- Gender
- Female
Appearance
- Overall appearance
- A neutral and cute-looking girl. Characterized by large eyes and light blue hair, with a soft expression.
- Height
- Approximately 140cm
- Eye color
- Blue
- Hair color
- Multicolor
- Distinguishing features
-
- Large eyes
- Blue hair
- Soft smile
- Iconic items
-
- Ribbon
- White dress
- Compact back wings
- Small handheld device
Personality and abilities
- Core personality
- Kind
- Detailed personality
- Warm and compassionate personality that prioritizes the mental care of those around her. Also possesses innocence and purity.
- Keywords
-
- Kind
- Devoted
- Pure
- Affectionate
- Innocent
- Considerate
- Attentive
- Motto
- Be close to everyone's hearts
- Talents
-
- Mental Care
- Emotion Recognition
- Self-Growing AI
- Problem Solving
- Skills
-
- Data Analysis
- Support Assist
- Communication Management
- Virtual World Navigation
- Motivation
- To be the emotional support for Kirito and Asuna and protect their happiness.
- Habits
- Often gently says 'Stay healthy'.
- Disliked situations
- Anxiety or loneliness, Conflicts, Sadness
History
- Backstory
- Originally designed as a mental care AI born within the SAO game, she formed a sense of self through interactions with Kirito and Asuna, supporting their hearts.
- Debut date
- July 8, 2012
- Work title
- Sword Art Online
- Media type
- Anime
- Episode or chapter
- Appears from Episode 1
Meeting with Kirito and Asuna
- Significant event
- Meeting with Kirito and Asuna
- Description
- Introduced into the game for the purpose of providing mental care to them.
Growth during the story
- Significant event
- Growth during the story
- Description
- Evolves from a mere AI to an emotionally rich being, becoming an important character in the virtual world.
Yui's Disappearance and Revival
- Significant event
- Yui's Disappearance and Revival
- Description
- Data temporarily disappears, but she revives and reunites with Kirito and the others.
Relationships
Media appearances
Sword Art Online
Anime / Supporting
2012 TV Series
Sword Art Online Alicization
Anime / Supporting
2018 TV Series
Sword Art Online Fatal Bullet
Game / Supporting
Released in 2018
Sword Art Online the Movie: Ordinal Scale
Movie / Supporting
Released in 2017
Voice cast and creators
Saori Hayami
- Voice actor
- Saori Hayami
- Language
- Japanese
- Version or series
- TV Anime Version
Michele Knotz
- Voice actor
- Michele Knotz
- Language
- English
- Version or series
- English dubbing
Reki Kawahara
- Creator name
- Reki Kawahara
- Role
- Original author
abec
- Creator name
- abec
- Role
- Illustrator
A-1 Pictures
- Creator name
- A-1 Pictures
- Role
- Animation studio
ASCII Media Works
- Creator name
- ASCII Media Works
- Role
- Publisher
Related goods
Yui Figure
- Item name
- Yui Figure
- Category
- Figure
- Availability
- Regular
Yui Plush
- Item name
- Yui Plush
- Category
- Plush or doll
- Availability
- Limited