+the storyline is light and not complicated ( not too much dramatic situation).
+the story is about friendship/sismance and of course there is some romance, after all it's a story about imperial harem.
+it's about harem, so there are many beautiful actress ❤️
+the story is funny, even tough the joke is something predictable but the acting + music make it enjoyable.

-the romance part start a bit late, around eps 12 when the ML's love rival showed up.
-the story between eps sometimes didn't connected (especially the later eps)
-the emperor is rarely get a scene in the few last eps.

conclusion:
this drama is a good historical comedy without heavy plot. recommended. it's good to cleanse your soul 😀