She has been childhood friends with Nagisa Kirifuji for over ten years. To her, the other Tea Party member Seia is also a truly precious and close friend, so she calls them "Nagi-chan" and "Seia-chan." Her flighty, talkative, and mischievous personality often draws out Nagisa's anger.

She almost always maintains a sense of dignity, calm, and elegance, but on the rare occasions when her pent-up anger explodes, she acts quite radically. Her childhood friend of over ten years, Mika Misono, is usually the primary cause of these outbursts. She addresses others using formal honorifics.

She is extremely calm and rational. At times, she speaks in such a complex manner that communication becomes difficult. She uses polite and formal speech. She is friendly with everyone and uses respectful titles when speaking to them. Her physical health is somewhat frail.