To start my review off, I'd like to say that I really enjoyed the story and it's realistic portrayal of the characters as humans - with flaws and negative traits. And yet, despite that it is one of the best romantic series that I've ever watched and it stands out among the many existing BL-series because of the masterful production, story writing and acting.
Another thing that I really liked was the music that often reflected the emotions that the characters were feeling, which in my opinion allowed the viewers to immerse themselves more in the scenes.
The cast did an amazing job, I praise both of the leads for beautifully portraying Teh and Oh-aew. I need to congratulate the actor, who played Teh on his effort to really embody the character. I loved all his quirks and mannerisms, they added to the realism. (The one small complain I have, would be that the he had a very specific sad-almost-crying face, that to me seemed very fake.)
Lastly, the remaining aspects that make me rate this series so highly - the choice of locations and stunning frames, as well as the color grading. The whole series is a beautiful experience and as a viewer I see how much effort was put into creating it.
(This review was written after my 2nd time watching this season and I'd say I like it even more now)