Very good storyline. All the actors and actresses have very good acting skill and lift up to the roles they play. Even though Zhang Ziyi may look a bit old for the 15-16 year old in episode 1 -5, it’s still bearable as it is only 5 episodes where her actual look (with wrinkle) is a bit too old for the role. It would be better to have a young actresses to play the role then Zhang to take over when the role matures to age 20+.
I am sure when the role at a later episodes mature, Zhang Ziyi will portray the role very well - acting skill plus matching look / age. I will continue watching this drama. Zhou is also good in acting. The only one that has a bit of flaws is the 3rd Prince who does not seem comfortable acting with Zhang Ziyi. His acting is not natural at all - a bit too much force.