So, I don't think it makes sense to list this as a oneshot with the other two sequels, since it seems to be an ongoing anthology? Either way, there are still related stories coming out, which are under the umbrella title of Imamade Kore Kara (at least from the scanlators, though I've not seen the originals).

It would seem to me to that it makes more sense to list them together... 😕