Nana is an introvert girl who's among the smartest in her school. She does have a good number of friends, but she hardly speaks to anyone else, and definitely not to the boys unless they're micros. Nana is really into detective novels and comics, and has thus started investigating on any accident involving micros occuring at school purely for the fun of it; this has lead her to suspect Alice is behind many of these incidents, though she has no evidence against her yet.
She likes reading all kinds of books and writing novels; she dislikes loud people and short skirts.
Relationship with normal-sized people
Relationship with micro-sized people
Nana worrying over her sister's behaviour.
Despite being friends with some of them and recognizing them as actual people, her interest in them is in great part a scientific one, and she's mostly drawn to them because of the weirdness of their condition; this hasn't prevented her from seriously befriending some of them though, like the two she accidentally killed during class once.
One tiny person she's especially close to is Saya, her own beloved little sister who happens to be micro-sized. Since the two have been living together for years, Nana is now an expert when it comes to micro people safety (at least in theory).
Micros generally like her, but most of them try to stay away from her anyway because of her absent-mindedness that makes her a pretty dangerous person to be next to.
The strips in which Nana stars as the main character are boldened.