I am really curious about watching this one! People with similar tastes to me seem to either really love it or really hate it so I'm super curious. The last drama that happened with was Kill Me, Heal Me and I loved that.
You really need to watch Cruel City and Ningen Shikkaku!
You should watch The Crucible, since you said you like 'psychological' and 'real world issues' in your profile. And I don't know if you would like Queen In Hyun's Man, because it may contain too much love not enough plot (I don't remember much about the plot)