Whenever I see a major bullying themed series, I always immediately stay away from it. Iam not a fan of the genre as a whole because I often felt it was predictable in the manner in which the lead will want to get revenge and that is the main story line.
let me tell you that this is different, it is a breath of fresh air in this genre. Firstly, I loved the attention to detail the cast and the writers paid in this film, the cinematic experience as a whole was good because it had realistic color grading, that honestly did a lot of justice towards the film. Secondly the lighting, this was one of those details that simply carried the emotions of the film, in the manner in which the director maintains the melancholic feel of the movie.
A comment on each lead character:
female lead:
She had an extreme sense of wanting to survive and leave her old life behind, she wanted to escape and there was only one way to succeed. I loved the way she steadfast in her belief to see Beijing. All her actions are driven by her burning desire to escape her life.
Male lead:
The appearance of the female lead sort of gives ml something meaningful and worthwhile to live for, something to care about
and this allows the audience to see to what extent he is willing to go for his newly found sense of belonging.

Now I am by the part that I would say is the groundbreaking factor of this film, the chemistry between the leads, the way in which you felt their emotion and the way in which you understood their love yet neither of them ever said it out loud.
Yes, this is the kind of love I absolutely love.
The best part was the overall theme of protection and survival, they both were similar yet so different. Both abandoned in their own way. Him always being behind her was such a clever idea not just because of the plot but also because of the theme, she found peace knowing he was always behind her, and he found someone he wanted to protect more than himself.
This film showed me that even with no words said we can all feel, I cried so hard throughout this film because of subtle and delicate their love was yet it was just as passionate and strong.