I really loved this series. The cast worked very well with each others and it was not awkward acting. The actors who played Bai Lou Yin  and Gu Hai really portrayed the building relationship and how they started to discover each other and theirs feelings very well and I could really see them slowly changing. The side characters were acted very well to and complimented the main roles.
The story follows the same one as some of the first book.
The theme song is very beautiful and I think the person who wrote it must have read the books because the lyrics hint to some parts of the book/story.
I really recomend this and it has to be one of my favourite BLs. Sadly, if you do decide to watch this, you must know that there will not be a 2nd season. It cuts off in around about in the middle of book 1. They may have filmed it but it is not allowed to air because China banned it.
I first watched the web series and now I am on the 2nd book. I still love both and can continue to discover they story even if there is no season 2 and am satisfied with continuing the story with the books