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| 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 in the 22nd floor of Aincrad. After taking care of her, she appears to have lost her memory. She calls Kirito and Asuna "Papa" and "Mama" due to having trouble pronouncing their names which is a side effect of the memory loss |
Yui Voice Actors
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| Stephanie Sheh (EN) |
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| Kanae Itou (JP) |
The English voice actor for Yui (Sword Art Online) is Stephanie Sheh and the original Japanese voice actor is Kanae Itou.