There was a lot going on in this drama, and I don't even know how to start writing a review about it! This series has many very good point, but there are a few things that bothered me. I don't think this drama deserves a 7.9, I think it should be higher. The plot is really unique and kind of disturbing (in a good way). There is a lot of pain and confusion, but Jian Xiao Yuan always tried to persevere. The suspence in this series was really overwhelming for me, thus I binged watched all the episodes, otherwise I could not concetrate on other things without wondering what would happen next. However, although there is romance I found the suspence and the main plot line to overshadow the romance, therefore, even though I began the series for the romance, in the end it turned more into finding out the truth behind the female lead's time travel mystery.

What I liked:
I thought this would be more of an innocent sci-fi + romance series, but it was not like that at all. It was pretty disturbing and shocking, and one could really sympathise for the female lead's painful confusion about her existence. The actress Liu Hao Cun was impressive, like it overshadowed Lin Yi's acting! He wasn't bad though, she was just very good at showing her feelings.
Jian Xiao Yuan is a strong character, she is confident, optimistic and resilient. But she also suffers a lot, mixed with the acting, I felt so sorry for her. Qi Lian was always supportive of her, and helped her.

What I disliked:
The series was extremely engaging until about ep 20. Afterwards it started to become draggy, and kind of annoying.. I enjoyed the makeup/hairstylist plot line in the beginning, it added a bit of lightness to the intensity of the story, but in the last 10 episodes it just became more of a way to make the series longer, instead of just finishing it. The ending felt very underwhelming, like the drama started off with soo many good and interesting plot twists, but the ending was just okay. Nothing special. To be honest I skipped some scenes in the last four episodes because of that.

Overall I recommend this drama. But I think I have to warn you before watching, that if you're not in the mood for something intense then maybe don't watch it.

!!Light Spoilers!!
The friendship between the male lead and female lead started off fine, but later on, still early in the story (like ep 6 or 7 I think), there will be a very emotional and traumatising situation between the leads. He will become a bit aggressive and it was hard to watch. It was hard to get over that later, as he never really apologised to her, in my opinion. I like that the series doesn't romanticise the situation of the two main characters but that episode really felt too much.