How many movies have Fujii and Kang Jeong-Hoon collaborated on?

They have worked on 1 movie together! Their first movie together was 내 엄마의 친구: 완숙한 육체를 탐하다 (2018) and was their highest rated movie together. They have not worked together since 내 엄마의 친구: 완숙한 육체를 탐하다 (2018).