How many movies have Kazuhiko Yamaguchi and Kenji Takamura collaborated on?

They have worked on 4 movies together! Their first movie together was Delinquent Girl Boss: Worthless to Confess (1971) while their highest rated movie together was Sister Street Fighter (1974). They have not worked together since A Haunted Turkish Bathhouse (1975). They are most known for their crime films together.