The first half of this very short "series" proves to us that a succubus is always a succubus and we don't need to expect anything but NTR. The second part - indicates that Kanzaki is completely weak and even when he "throws a logical phrase", Setagaya Mari "defeats" him. Therefore, in terms of plot, it is even worse than the first series, where there were "hints of coercion", because here it is simply some kind of cuckoldry and there can be no "relationships" (except for sexual ones). As for hentai - we were given a little more "variations of succubus power", which is good, but... Is the "backstory"for everyone?