This could be possibly be better as a longer series, but I don't see it deserving any praise. It really falls flat as a oneshot, as it was just an endless stream of "all according to keikaku" narrated flatly, with a final love confession at the end. Everyone was in on the plan and royal family is mindlessly cruel without even paying attention if their fiance/lover/supplier is someone they wronged in the past.
I assume just after this she was revealed as the Saintess and killed God, who was actually evil don't ya know.