Yui

personality

cheerful, sweet, innocent, childish, protective, brave

race

AI (Artificial Intelligence)

Father figure

Kirito

Mother figure

Asuna

likes

being with Kirito and Asuna, being with friends, going on adventures, and helping others

dislikes

not being useful, seeing others in pain, whenever Kirito "flirts" with other women

appearance

She has long dark hair and bright black eyes. In her most common form, she wears a white one-piece dress. In her Navigation Pixie form she has tiny wings and wears a long light-pink dress with detached sleeves and pink anklets. In both forms she goes barefoot.

abilities

able to detect others emotions, able to hack into any Internet