The plot is obscenely brilliant. It also has plenty of much needed fan-service.
Personally, I would give this a 9.5 / 10. If not for the plot, then for the underlying theme of the entire series. It's bold, unapologetic in it's context matter.
That being said, this series is not for the easily offended, or those who have moral dilemmas against age-gapped relationships. But, if you're a cultured person, you should very well enjoy this!
Critically speaking, this anime is a bit cliche with it's "whoops, slipped into a portal to another dimension by mistake" but that's to be expected at this point.
