Responses

Honestly, its annoying for a bit and then you just start getting used to Kiyoungs narrative and how he sees the characters (they start to get more endearing tho it took me some time for some characters while others, meh) but you'll truly understand that Kiyoung prioritizes Hyungsung and his trust first later on in the novel
Yes, this is a harem but truly the "romance" with the girls are only there for Kiyoungs plots and plans. He doesn't actually romantically love anyone but likes them because they are useful and powerful and easier to sway to his side using romance.
He does care for the girls but you'll find the author puts much more emphasis on plot and bromance later on. And truthfully, in the novel he has MUCH more bromance and chemistry with the men instead and at some point in the novel the romance takes a backburner and focuses more on Kiyoungs schemes.