A total perfectionist—and I mean total. She cares deeply about how things look, but it goes way beyond just her own appearance. She's genuinely devoted to the "beauty" of basically everything around her. Fans often note the contrast between her extremely calm, composed exterior and what's actually going on underneath—she's got a surprisingly violent streak that catches people off guard.
She's got a weak spot for guys, which probably doesn't help her perfectionist image. But her real feelings are directed at Natsume, her childhood friend. She's in love with him, though how openly she shows it is another story entirely.
Content compiled by AnimeList.moe from publicly available sources.