How many movies have Shizuo Suzuki and Yoshikazu Katō collaborated on?

They have worked on 18 movies together! Their first movie together was Lady in a White Coat: Lewd from the Front and Back (1997) while their highest rated movie together was Gibo no onanii: Hatsujô roshutsu (1997). They have not worked together since Whore Hospital 4: No-Pants Nursing (2001). They are most known for their drama films together.