Saya is a cheery and happy little girl who's been living her whole life in a safe environment both at home and at school (safely placed in the small, tiny-only district of the town): for this reason, she's very curious about the world and of the places she's never been allowed to visit because it would be too dangerous for her.
She once tried to enter her sister's school by hiding into her skirt, but she ended up getting almost killed and witnessing with her own eyes some of the most cruel aspects of the outside world; she was later again protagonist of a terrible incident when a cosplayer entered the micro-only zone where her middle school is in order to take some photos, which then led to the death of her best friend Momoko, who ended up being crushed by a policewoman in front of her own eyes.
She likes all sorts of cartoons and anime; she dislikes being treated like a kid, despite being one.
Relationship with normal-sized people
Relationship with micro-sized people
She's never really had any contact with the normal-sized folks apart from the bigger members of her own family, who have of course always been incredibly caring and excessively overly-protective toward her; but after she risked dying at the ends of a cruel girl at her sister's high school, she started understanding that not everyone is as kind as her sister, and started being much more suspicious (and scared) of anyone normal-sized.
The strips in which Saya stars as the main character are boldened.