characters' sexualities?

Sakuya's the easiest. Bi leaning toward female Though its a biiit more complicated than that

Koishi doesn't really have this as a concept at all. But it also means she doesn't have any qualms with it either.

she simply doesn't care.

Because tentacles

koa sexual

............ yeah pretty much. Though Koishi is pretty okay with being in a sexless relationship. It's more Koa's nature that dictates that.

Koishi just doesn't really care either way