Yorutsuki Hiori

"Wasn't today the day we planned to grab snacks on the way home from school?"

Taiga’s classmate and his childhood friend.

She’s a former magical girl and one of those
who saved the future of humanity
in the grand battle several years back.

She works as a shrine maiden at the largest shrine in town.
She is a big eater and can devour a parfait
so fast you'd think it was a drink.
She'll eat anything as long as it's tasty.

According to her own words,
she has a hungry little monster living in her stomach,
and she's always keeping a sharp eye
on Taiga's lunch and snacks.
For some reason, when she gets hungry,
she loses all sense of direction and often ends up getting lost.

She is clingy, prone to feeling lonely, and a little sharp-tongued.

Profile
Height: 152cm
Measurements: B82 / W53 / H79
Favorite food: Milk. She has a sweet tooth, but isn't really picky. She'll eat just about anything.
Blood type: O
Birthday: October 16th

From official english website

When she was still in the womb, Hiori was left in a perpetual fetal state for unknown reasons and thus was never born. Her mother received an amulet by a mysterious old woman when she swapped places with her twin sister. In it was a diary, which showed the locations of starlight in the land of Night which could grant any wish a person had. After collecting enough starlight, Hiori's mother used the starlight to purchase a vessel for her. Using that vessel, her mother gave her own life to put Hiori's unborn soul into it which resulting in her being born into the real world as a real person. However, the vessel creation was incomplete due to insufficient starlight. Her mother was unable to buy all the parts she needed and Hiori was left with an incomplete human body as a result. This is why she has a notably insatiable hunger and limited IQ.