How many movies have Jung Jae-hoon and Koo Kyo-hwan collaborated on?

They have worked on 1 movie together! Their first movie together was Romance in Seoul (2014) and was their highest rated movie together. They have not worked together since Romance in Seoul (2014).

Crew
Writer
Role
Ki-chul / Kyo-hwan (seg.2 / seg.6)
Crew
Director