Kanna tends to refer to herself in the third person, indicating a certain level of childishness, though she makes an effort to correct herself sometimes when she catches herself.

She is very trusting and naive, and believes in Shin despite knowing he manipulated her in the past. She can seem timid but is actually quite unafraid to speak her thoughts. While she was at first referred to as 'Frightened Girl' in Sara's internal alias, this does not appear to be the norm. When she was exploring the third floor with Shin she firmly lectured him for weakly wanting more breaks.

Kanna is fairly dependent on those with stronger personalities and often relies on other people for help, due to the self-belief that she is incapable of helping herself or others.

Despite being one of the most vulnerable and unstable of the group, Kanna tries her best to be helpful and demonstrates bravery, the initiative to act, and a willingness for self-sacrifice.

She has also shown some cleverness in how to figure out the password to Kai's laptop when Shin was at a loss, and simply lacks the self-confidence to understand her own value. This is also supported by chapter three. If she's alive it explains that Kanna was aware of Shin fabricating her sister's dying message, but took it to mean that he genuinely cared about her feelings.