Let's start with what I loved:

Wu Zheng is wonderful. Watching him be so gentle with Yu Shi was possibly my favorite part. I respect the fact that they chose to tackle DID and didn't make a complete mess of it (in my opinion). The acting is quite good, Wu Zheng is obviously head over heels and I really appreciate that Yi Da Dian wasn't overacting for Yu Shi. Not only that but he was very believable playing two different personalities.

Now, what wasn't so great:

First of all, the pacing is off, to the point where it's pretty jarring at times. Then, introducing a new couple out of nowhere. In the end, you're left wondering "Who is Jun Zhe?", "Who is Shang En?", and "Why should I care?" Either make a longer series with two couples who both get time to have a well developed story or keep it short with one couple. Finally, it's too short. I actually mean it's too short, not that they didn't use the time well. I think they needed at least two more episodes to come up with something that feels satisfying in the end. It's a compliment saying I wanted more, though! Now in the end, I still think it was very cute but it could have made such a bigger impact on me had we had more time to understand their relationship and understand why Wu Zheng fell for Yu Shi.