How many movies have Sakae Nitta and Shōji Sakai collaborated on?

They have worked on 19 movies together! Their first movie together was Molester and the Female Teacher (1981) while their highest rated movie together was Targeted Girls’ Dormitory 3: My Senior is a Lesbian (2008). They have not worked together since Targeted Girls’ Dormitory 3: My Senior is a Lesbian (2008).