Trouble is, with only 2 elemental strength, it's VERY hard to raise Moghancement: Region to a strong level. There's only one way I can see to get 101+ Earth strength and keep your Moghancement as Region, and that's with 51+ Secretaires.
It would be easier if Yellow Jars didn't take some mysterious priority over Secretaires. Both are strength 2 Earth furnishing, but Jars are Moghancement: Earth. Unfortunately no matter how many of each you have laid out, the Moghancement will always end up as Earth for some reason.
Edit: Haha, it gets worse. The only Earth-boosting items that do not take priority over the Moghancement: Region are Strength 1 flowerpots and Kadomatsu.
So not only is it next to impossible to get even Powerful Moghancement: Region without multiple Secretaires, but it's also exceptionally difficult to even have Earth as your dominating furnishing this way!
Secretaires suck. And they'd be so awesome if only Moghancement: Earth didn't have some unexplained priority over Moghancement: Region.