@Rebel against the harem I'd say not until Nayun finds out why Hajin killed her brother and the part that Yeonha spilled out to Nayun all of Hajin's secret, who killed his family plus the fact that they all thought and believed Hajin literally die. Personally, that part was the most heart wrenching than this chapter over all. After that it really felt it drops like what you've said but it's still great. It just that it turned out different from what i expected it to be so yeah kinda fell off for me.
I don't care about your taste!