Kokomi Oba

Kokomi Oba is a 16 year old girl who works in the kimono shop together with Tsukiko and she's part of the Aoi-hata guild.

There Isn't much of a story, Kokomi was hired to be a housekeeper of the aoi-hata guild after she took a walk in the forest and saw a fight between Hitoshi and a monster and they had to keep her quiet about the existence of the monsters somehow.

she's like the youngest sibling of the guild since everyone else in the guild are adults and she's the only minor.