The reason why I went to watch "Day and Night" is that I was somewhat surprised by its rating on Douban which is a Chinese website for people to share opinions for movies and TV series they have seen. After I finished the first episode, I was totally attracted and wanted to know the whole plot. I was amazed by the music, the story line, the color, and the picture. Actually, I think the actor Yueming Pan who performed the two protagonists contributes a lot to the success of "Day and Night". The twins in the story are both acted by him. They have alike looks and dress in alike clothes, yet their characters are opposite. The elder brother is relatively a rational introvert, but the younger brother is quite outgoing. In my opinion, it's a challenge for an actor, since when there are two different characters acted by the same actor appear in a picture simultaneously, it is easier for viewers to find if the actor deals with these two different characters in different ways. Pan makes the twins different by giving them characteristic gestures, different tones, and even distinct eyes. I even wonder if Pan does have a twin brother. All in all, it is an amazing show and it is worth seeing.