How many movies have Hachirō Kai and Seisaku Kimura collaborated on?

They have worked on 14 movies together! Their first movie together was Daydream of Love (1980) while their highest rated movie together was Angel Guts: Red Porno (1981). They have not worked together since Renzoku boko: Hakuchu no inmu (1982). They are most known for their drama films together.