Royal Harem ending feels like its missing a step

[Jackdaw Mask]

So you get the ending by having each ruler at 100% and then sending dowry to one of them and while the cutscene at start of it is funny... Err, you kinda get it by playing game normally and then sending dowry to ruler you happen to have resources for? Like I get idea of it is that you are being indecisive and playing around with all of them, but also like you get different issue missions from each of them so there is no real reason to just avoid diplomacy with with all of them? Like it just kinda feels like if you want to have one of ruler specific endings, you need to have fourth one be at 98% forever and never interact with them again.

There is also that flavor of ending is basically "you get corrupted by having four lovely rulers lusting after you and absolute power over nation that grants you into becoming sleazy emperor archetype and forget about original goals" but you don't particularly do anything sleazy to obtain the ending? You just help all of them with their problems as part of diplomacy and gain all of their respect in process. It kinda feels like ending is missing a step where you actually do something sleazy or decadent. Its extra weird when ending is clearly framed as villainous ending, but Hong's character becoming decadent absolute monarch is probably improvement over him sacrificing his people in disasters, so it really feels like a step is missing from making it really feel like the ominous music and art is earned.

(also speaking of harems, I find it funny how each yaoguai is attractive monster girl despite lore wise there being male yaoguai and while there is good and bad ending, there isn't romance with them. Or are devs planning romance update at some point?)