The plot was not boring, the execution was quite good and the story wasn't static, which is what made me look forward to the next episode everytime.
First of all I want to mention some things I appreciated. Aside from the non-boring plot, I think that the characters were overall well-built, I especially appreciated the contrast between Sailom being a mentally strong individual, opposed to the lost nature of Kanghan.
I would like to mention some of the "negative" things I personally put thought onto. First of all, the CGI because well... the gunshot, but let's leave that aside. There were some instances in which I was left slightly confused, such as Kanghan being hospitalized for a minor graze gunshot wound, and 5 minutes later hugging his father with no physical impediment, but these are minor things.
The "biggest" issue I had was with the fact that I felt a little off about the actual romance. As I do understand that people express care and love in different ways (plus considering we are dealing with teenagers), I still felt like Sailom and Kanghan sometimes didn't completely look like "couple", it's as if I couldn't grasp what the main focus of the series was, as nothing was at the center, we did get a good plot, character developement and a zoom on Sailom and Kanghan's relationship, but I feel like something was missing. Even if there were many instances where I could tell how much Sailom cared about Kanghan, in other contexts (especially when they had to convey the attraction) it just didn't hit right, to be honest I somehow felt like Chimon didn't really do his best on intimate scenes, his kisses were cute but didn't look passionate at all, which in some context would have been more appropriate (this might not be such a big deal for many, but to me it kind of takes something off that realism and relatability I expect to see in such a relationship). Despite this, by thinking more deeply about the nature and development of the characters I guess I can justify some behaviours, although, for example, I still can't comprehend Sailom's reaction to what happened to him starting from his brother's arrest, I know Sailom has a very strong and collected nature, but I feel like it looked a little bit too collected (even if, fortunately, later we got to see him breaking down in the shower, which made it make more sense), he didn't look to lost even when he was alone, I appreciate him being strong and determined to pull through, but I still think they could have conveyed his feeling slightly differently (but this is more like a personal thing, I still think it makes sense the way it is).
To add on, I think that the choice of putting the role-play scene as a post-credit scene was perfect, it left me with a light heart and happiness about the series, while also fulfilling the need of them being closer.

I absolutely need to mention that I got somehow more excited about the side couple, plus I feel like the kiss that Guy and Nawa had was the best one of the series, I personally found it the most beautiful, it made me incredibly happy as it was sweet and passionate (which is the thing that I found lacking in Sailom and Kanghan's), the tension they've been having for 12 episodes finally collided in such a sweet moment, in which I realized that they did perfectly understand eachother.

At the end of the day I am quite satisfied and would defenetly rewatch it. Overall it was very good and I would defenetly reccomend it.