It's a wall of text but hear me out.
I consider fiction to be a realm with no boundary, which include ethic and taboo stuffs. It's a dangerous place, but also the one with most freedom. Hence the readers are those who need to be careful and be aware of what they're getting into (that's why many stuffs need warnings at the beginning).
It's just my opinion, but freedom is not to be full if there are still restrictions. We need those in real life as we have a physical impact on others, but in fiction it is a safe place to release the primitive desire without the filter of ego and superego.
Well I agree on with you on this. The choice of making Oreum had feeling for her uncle was bad. It's just kinda out of nowhere and forcing, a terrible deus ex machina.
And to make it worse, Binee just has to be so understanding for her. With respect to the fact that it's taboo in the story, Binee's action gave me an uhhh...yeah... disappointed.
I don't have prob with incest but I surely wasn't expecting that in a manhwa like this (゜o゜)