I feel like this has spun so far from the original premise, might as well be a sequel at this point.
How do harems solve low birthrates anyway? I don't think the number of singles who'd only consider a harem could be all that high.
I wonder why Yuzu wants Ryuu to get a new wife though. She was going on about rivals all the time and now she's helping to make the wife rotation longer again.
Or does she maybe need the anticipation / more opportunities to peek
