How many movies have Kiyomi Itō and Masashi Inayoshi collaborated on?

They have worked on 22 movies together! Their first movie together was Wakazuma: Ushiro Kara Hiraku (1989) while their highest rated movie together was Seifuku onanie: Shojo no shitagi (1992). They have not worked together since Nôsatsu!! Sales Lady: Nikutai Kanyû (1995).