Cha Soo Hyuk is focused only on his survival, without any grand goals. He reunites with Lee Yoon Dae, who he was very close with. Yoon Dae was living with his girlfriend but now has nowhere to go. They end up living together.
Native Title: 회색기류
Also Known As: Gray Currents , Gray Stream , Grey Shelter , Hoesaekgiryu
The episod is like this