I'm giving only four points because of the ROMANCE part. The whole drama(plot, direction, acting, costumes, etc) was really good.
The romance between Moo-myung and Ah-ro is really indigestible. I wish they stayed as brother and sister. This would have fulfilled the wish and duty of his friend Mak-moon.
I felt extremely sorry for the young king Sammaek-jong. He showered lots of love, care and attention for Ah-ro but, I couldn't understand why she denied him.
We also can't deny that Mak-moon gave word to Moo-myung in marrying his sister...this is really frustrating, UGH!
And obviously each and every ARMY is here for our V!! Lots of love to him always and it's really surprising to watch him acting...