Responses

I think Seungho is hostile towards Heena simply because he thinks she’s going to take him away. Heena has good intentions imo. I believe everything she’s done for Nakyum was for his own sake. She wanted him to leave the Kisaeng household because it was not a safe place, and trusted him in the hands of Inhun, which was obviously a mistake. If Heena gets involved with Min, it’ll most likely occur because Min is manipulative, and will convince her to follow his plan or whatever.
Since some of you finds Nakyum's sister sus then maybe there's a reason why he's hostile towards her? Maybe Seungho knows the reason why she wants Nakyum with her or the people behind her intentions? Just my opinion.