Aside from the fact that the two female leads are both amazing actresses, the storyline and the setting really added to the beauty of this drama. I personally love the structure of the plot and how they delivered it every episodes. There is not a single second wasted because every bit of it is crucial to the bigger picture. This drama is worth watching and deserves a lot of praise and hype. It may not be obvious on screen because of the censorship, but the viewers will clearly understand that what goes on between the two women is more than just friendship. Also there is a manhua based on this under the same name. They are canon in that one. And we also got a lot of behind the scenes and other content from the two drama leads.