How many movies have Koji Okumura and Yukijiro Hotaru collaborated on?

They have worked on 7 movies together! Their first movie together was Sex Document: Nakase Jôzu (1985) while their highest rated movie together was Subway Serial Rape: Lover Hunting (1988). They have not worked together since Subway Serial Rape: Lover Hunting (1988). They are most known for their comedy films together.