Kanna is a short, frail girl who wears a blue bucket on her head because she thinks it's a hat. She has pale lime-colored hair and wears a yellow clasp shaped like screws on the right side of her head. The design matches her sister's clip. Kanna has big green eyes and delicate features.

Kanna refers to herself in the third person, indicating some childishness, although she corrects herself when she catches it. She trusts everyone around her. She seems timid but not afraid to speak her thoughts, and while she was primarily referred to as 'Frightened Girl' in Sara's internal analysis, this does not appear typical of her. Kanna is somewhat dependent upon those determined and relies on them for help due to insecurity that she is inadequate of helping others and herself.

(She is one of the Death Game participants.)