Even if this information has no connection to the current Mount Oe, it is useful for Kamiyagawa.
"At that time..." Hoshiguma took another sip of wine, appearing to reminisce. She spoke haltingly, "It was very different from now. Tokoyo and the Present World were not completely separated like they are now. Humans and demons lived in the same world. The world belonged to humans during the day, and to the Demon God at night."
"Why was the world split into two?"
Regarding Tokoyo and the Present World, the split a thousand years ago wasn't clear, but then at some point, they suddenly separated completely.
This point left Kamiya feeling incredibly confused.
What exactly happened back then?
"Indeed..."
Hoshiguma spoke as if in a dream.
She sat with one leg crossed, the other leg up, a posture that could not be called elegant, but rather bold. The hem of her crimson skirt only covered up to her thighs, revealing the white skin of her legs.