This show is a bit close to my heart. Not for the bullying part but for the part where she had a brain tumor. although that part did tear at my heartstrings. I felt for her every time they show bits and pieces of what happened to her and why she turned out the way she did.
I can sympathize with her because I went through surgery for a brain tumor at 22 yrs of age. It is not an easy thing to go through. One thing that really bothered me is if she had surgery for a brain tumor, make it more believable. Recovery time is long and if it was where they had to go through the skull they would shave the head where they did surgery at. And the bandage they had on her head was not believable. Lol sorry just a bit of a pet peeve of mine. Make it a bit more believable!! So for that part of the show I struggled a bit. That being said...

Story... could it use some work? Yes, but so can all shows. They are not perfect.
The storyline I loved! It broke my heart every time her friends ignored her or were rude to her. Their lack of acknowledging that they were in the wrong and put the entire thing on Ai Li Su only was really wrong. Lei Lei ticked me off because she really was selfish. She ditched Ai Li Su because she was keeping a secret for someone else. I get it was a secret that was kind of about her. But if she truly understood Ai Li Su she would not have treated her the way she did. She made me mad a lot of times. The other friend (sorry can’t remember her name lol) was a follower and weak. She did anything Lei Lei wanted her to. She was as much to blame as Lei Lei was. I am glad she was quicker to realize her mistake and showed remorse for her part. To bad Lei Lei did not. She was to much of a selfish, vain girl. Also, “Peter” had as much fault as any of them. Especially for not making it perfectly clear that he was wrong for making her promise to keep his secret. I get why he did it but he was at fault big time.
I wish the end had a bit more. Yes, I say this a lot! But it is true. It hinted at marriage and so on but not much more than that. I do like how they let you think she is gone at first and then she appears. Was a cute little twist.

Acting/Cast... I thought they all did a good job. I felt all their pain, happiness, uncertainty, betrayal, and love. I do think the actress who played Ai Li Su was perfect for the part. She did a good job at being more or less like a robot. She showed many sides to her acting. The one who played Lei Lei also did good at playing a selfish vain woman.

Music... I really loved! I hope I can find the soundtrack.

Overall it was an enjoyable show. I have watched it twice now and loved it both times. Again... really love the storyline. It was heartbreaking and then heartwarming. It is worth the watch even if you see it just once.