This serious is a mix of really serious, but slow and beautiful BLs and of the typical comedy university BLs. The story of Dean and Pharm is more serious and "sad" (regarding their "past lifes") and everything regarding the life at university in the present and the other side couple are more like the typical Thai engineering BL.

First of all, I still don't understand why they didn't make the time line more evident, like show when this all happened between Intouch and Korn, at least use a filter too show that it was long time ago. It didn't bother me too much though, after I figured out who is "from the past" and who's not.
And I wish Dean and Pharm would have more dialog and less awkward scenes (where they don't talk and there is just this awkward silence). And they're story was a little bit too long-paced for me and I'm not sure if I really feel their chemistry. But I'm probably just not a fan the character type of Dean (like not being too expressive).
And they get outshined by the side couple, Win and Tim. They just can't compete with the chemistry Bounprem(winteam) have. It was a little bit sad that Win and Team had so little scenes (I watched their sequel "Between us" and honestly.... they are better at staying the side couple) . The pacing generally was a little bit too slow for me and they could have shorted it a bit and maybe put more Bounprem scenes in this series instead of making a whole series only for them.

And I have to mention that I absolutely loved InKorn, they have chemistry. Honestly I liked them more than their incarnations.
Honestly, I'm not really into the whole "incarnations" thing generally, but I enjoyed UWMA anyways. This was my first BL ever and when I first watched it, I gave it a 9,5/10, but right now, having rewatched some of the scenes, I'm don't think I would rate it that high again having watched many other BLs, so I give it 9 (probably it would have been 8,5 if it wasn't so nostalgic for me).