How many movies have Hirokoji Osaki and Narcissus Kobayashi collaborated on?

They have worked on 1 movie together! Their first movie together was While My Wife Was Away On Vacation, I Went Crazy With My Little Sister-In-Law And Fucked The Shit Out Of Her For 72 Hours And 30 Minutes Suzu Honjo (2019) and was their highest rated movie together. They have not worked together since While My Wife Was Away On Vacation, I Went Crazy With My Little Sister-In-Law And Fucked The Shit Out Of Her For 72 Hours And 30 Minutes Suzu Honjo (2019).