I think it is the most realistic drama I had seen. The production is great and the atmosphere of the 90s is so real. I love both ML leads. They have done great job.

I love the development of Seung Ho and his fenomenal transformation from cop to thug as he really became one. And build thrue friendship with Ki Chul. Also Hae Ryeon character was great and she was the main character to comparation to Eui Jung as her character/acting did not left any expression on me.

Despite it has sad ending, I have to say it is great ending. Everyone gets what they deserve. Specially the fat cop as he was the most enoying character ever. I felt quite bad for Chul as he put his trust to wrong people and because of that he lost everything and everyone betrayed him. I could see the pain in his eyes as he confronts them and he had nothing to live for anymore.

I wish they could walk together through the streets of Gangnam forever. That last seen made me quite emotional.