I used to watch a lot of BL back then, from Addicted to Tharntype and some other Thai BL series. I haven't been watching any BL dramas recently since the acting in a lot of series is pretty awkward and over the top. Also a lot of them don't have a good plot and revolves around NC scene/ kiss scene which feels forced to an extent.
I came across Unknown from a short video clip and I was interested immediately. That was a week ago when episode 9 came out and I finished the whole 9 episodes in a night (only 30 mins per episode). From then I kept re-watching the whole 9 episodes to wait for ep 10-11-12 and I was not let down.
The last 3 episodes were beautifully made, everyone has their happy ending.
The acting in this drama is superb, not necessarily Oscar level but both actors really portrayed the characters very well. The kiss scene, NC scene, none of them feel forced. The OST is also a strong plus.
The only complaint I have is the NC scene in ep 11, i think they could have done a little bit better in editing.
Overall, a very worth watching drama in general.
Good luck to both actors in their future works!