I have put Sky Castle in my top drama list in my 2018 Year In Review article :) As for the rest, I also watched…
I'm going to watch "the world between us" after reading your review ! well 2019 really was a bad year for Kdramas ..I'm in a rut too but there is this drama called "partner for justice" i watched only the second season(2019) and it's pretty good and better than half of the Rom-com released last year. I didn't watch the first season so safe to say you can watch the second one without watching the first one.
But if you are into thriller/mystery or drama with great plot n stuff ..check out these :
But if you are into thriller/mystery or drama with great plot n stuff ..check out these :
Doctor Prisoner
Tunnel
The dual
Life on mars