okay. I think I'm missing something with this story and I finally found out why.
First, the title is Formed by a Cloud. in which we interprets is Dowun. However this Dowun doesn't have any inch of kindness or care for our Hong Lyon which is very troubling. She's an indispensable tool in his hands, so Hong Lyon treats him the same is satisfying but! She grew very cold instead. Is this story a despair inducing one?
Second, the author really made Baek Han literally the opposite of Dowun. This at first isn't wrong, but the blatant siding of Hong Lyon is a bit weird. She knows by siding him too much will make him an easy target of Dowun. I think, rather than Baek Han, I think she'll better off faring with Gyeol.
I don't know possibilities of Dowun ever becoming a main couple, but judging by the notion, should he be? Will look for another updates then.