Sasaki

Sasaki, referred to respectfully as Sasaki-san, works as a housekeeper for the Iki family and appears mostly in the margins of Hiyori's home life. The wiki record of her is thin, but one detail stands out: over time Hiyori took to competing with her over household chores, and ended up earning enough of her own money through it to pay her own way into one of the story's more dangerous locations, rather than relying on anyone else to fund the trip.